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  • Penghentian penjualan kategori produk pneumatik Seri Ekonomi (E-series). Info Detail
    Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

General Type, Knock Cylinder, NDA/NSA Series (Part Numbers)

General Type, Knock Cylinder, NDA/NSA Series

The total length is shortened as much as possible. The compact, lightweight knock cylinder demonstrates space-saving effectiveness in various mounting configurations.

(i)Caution

  • The product images are representative only. Please refer to the catalog for shape details.

PDF

Product Specifications

Display symbol of double acting type

Display symbol of double acting type

Display symbol of single acting push type

Display symbol of single acting push type

Internal structure and name of each part of double acting type

Name of each part of double acting type (Standard cylinder)

Standard Cylinder

Name of each part of double acting type (Sensor cylinder)

Sensor Cylinder

No.NameMaterials
Standard specificationsNon-ion specification
(1)Main BodyAluminum (anodizing)
(2)Rod bushingOil-impregnated copper alloyStainless steel
(3)Piston rodStainless steel
(4)PistonBrassAluminum
(5)Head coverAluminum (anodizing)
(6)Retaining RingHard steel (Nickel plating)
(7)BumperSynthetic rubber (NBR)
(8)Magnet⌀6: Sintered alloy magnet
⌀10·⌀16: Resin magnet
(9)SupportBrassAluminum
(10)Mount nutHard steel (Nickel plating)
(11)Rod end nutHard steel (Nickel plating)
(12)Piston packingSynthetic rubber (NBR)
(13)Rod packing
(14)O-ring

*: ø6 (6 mm diameter) main body cannot be disassembled

Internal structure and name of each part of single acting push type

Name of each part of single acting push type
 NameMaterials
Standard specificationsNon-ion specification
(1)Cylinder tubeBrass (Electric nickel plating)Special steel
(2)Piston / piston rodStainless steel
(3)Rod bushingPhosphor BronzeStainless steel
(4)SpringHard steel (Zinc plating)
(5)Piston packingSynthetic rubber (NBR)
(6)Mount nutBrass (Electric nickel plating)Special steel
(7)Rod end nutHard steel (Electric nickel plating)
(8)GasketSynthetic rubber (NBR)

* Gasket is for insert mount only

Behind the scenes

 

This product was developed through rigorous testing to meet the customers' needs by combining the design expertise and production technology that the manufacturer has cultivated since its founding.

Part Number
NDA10X30-8-Y
NDA10X30-N
NDA10X30-N-1A
NDA10X30-N-8
NDA10X30-Y
NDA16X5
NDA16X5-3
NDA16X5-3-Y
NDA16X5-8
NDA16X5-8-8E
NDA16X5-8-8E-Y
NDA16X5-8-Y
NDA16X5-N
NDA16X5-N-3
NDA16X5-Y
NDA16X10
NDA16X10-3
NDA16X10-3-Y
NDA16X10-8
NDA16X10-8-8E
NDA16X10-8-8E-Y
NDA16X10-8-Y
NDA16X10-N
NDA16X10-N-3
NDA16X10-Y
NDA16X15
NDA16X15-3
NDA16X15-3-Y
NDA16X15-8-8E
NDA16X15-8-8E-Y
NDA16X15-8-Y
NDA16X15-N
NDA16X15-N-3
NDA16X15-Y
NDA16X20
NDA16X20-3
NDA16X20-3-Y
NDA16X20-8
NDA16X20-8-8E
NDA16X20-8-8E-Y
NDA16X20-8-Y
NDA16X20-N
NDA16X20-N-3
NDA16X20-Y
NDA16X25
NDA16X25-1A
NDA16X25-3
NDA16X25-3-Y
NDA16X25-8
NDA16X25-8-8E
NDA16X25-8-8E-Y
NDA16X25-8-Y
NDA16X25-N
NDA16X25-N-3
NDA16X25-Y
NDA16X30
NDA16X30-3
NDA16X30-3-Y
NDA16X30-8
NDA16X30-8-8E
NDA16X30-8-8E-Y
NDA16X30-8-Y
NDA16X30-N
NDA16X30-N-3
NDA16X30-Y
NDAS6X5
NDAS6X5-3
NDAS6X5-3-CS11TA1
NDAS6X5-3-CS11TA2
NDAS6X5-3-ZC130A1
NDAS6X5-3-ZC130A2
NDAS6X5-3-ZC130B1
NDAS6X5-3-ZC130B2
NDAS6X5-3-ZC153A1
NDAS6X5-3-ZC153A2
NDAS6X5-3-ZC153B1
NDAS6X5-8
NDAS6X5-8-8E
NDAS6X5-8-8E-CS11TA1
NDAS6X5-8-8E-CS11TA2
NDAS6X5-8-8E-ZC130A1
NDAS6X5-8-8E-ZC130A2
NDAS6X5-8-8E-ZC130B1
NDAS6X5-8-8E-ZC130B2
NDAS6X5-8-8E-ZC153A2
NDAS6X5-8-8E-ZC153B1
NDAS6X5-8-8E-ZC153B2
NDAS6X5-8-CS11TA2
NDAS6X5-8-CS11TB1
NDAS6X5-8-CS11TB2
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipCylinder Operation Method Main Body Shape Cylinder I.D: D
(Ø)
Stroke: L
(mm)
Operating Temperature
(°C)
Sensor specifications Mounting Type Rod Tip Specification Piston Rod Specifications Sensor Switches Lead Wire Length Number of sensor switches Cylinder Specifications

701,993 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard10300 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

557,122 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard10300 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

557,744 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard10300 to 60-Foot typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

613,620 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard10300 to 60-Eye typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

645,849 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard10300 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

498,167 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

495,110 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

580,792 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard1650 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

550,847 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Eye typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

610,945 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

698,972 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

641,436 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard1650 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

494,071 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

495,110 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard1650 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

579,753 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard1650 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

532,917 IDR

1 Piece(s) 11 Day(s) or more Double Acting[Standard] Standard16100 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

523,532 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

609,214 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

579,269 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Eye typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

641,713 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16100 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

727,395 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

667,296 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

522,494 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

523,532 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16100 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

608,176 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16100 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

550,916 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16150 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

551,954 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16150 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

639,981 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16150 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

670,134 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16150 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

758,163 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16150 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

695,718 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16150 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

550,916 IDR

1 Piece(s) 15 Day(s) or more Double Acting[Standard] Standard16150 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

551,954 IDR

1 Piece(s) 15 Day(s) or more Double Acting[Standard] Standard16150 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

638,943 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16150 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

596,500 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

580,376 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

668,404 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

638,459 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Eye typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

698,557 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

786,584 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16200 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

724,141 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

579,338 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

580,376 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16200 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

667,365 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16200 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

607,760 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16250 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

609,422 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Foot typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

608,798 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16250 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

696,826 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16250 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

666,881 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Eye typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

726,979 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

815,007 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16250 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

754,908 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

607,760 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

608,798 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

695,788 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16250 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

638,528 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Basic typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

639,567 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Flange typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

725,249 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Flange typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

695,304 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Eye typeNo knuckleMale threadNoneNoneNoneStandard Cylinder

757,747 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneStandard Cylinder

843,429 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Pivot mounting type (with support bracket, pin, retaining ring)With Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

783,330 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Eye typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

638,528 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Basic typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

639,567 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard16300 to 60-Flange typeNo knuckleNon-threadedNoneNoneNoneStandard Cylinder

724,210 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard16300 to 60-Basic typeWith Y type knuckle (with pin metal fittings)Male threadNoneNoneNoneStandard Cylinder

565,118 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Basic typeNo knuckleMale threadNoneNoneNoneSensor Cylinder

565,465 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadNoneNoneNoneSensor Cylinder

782,630 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadCS11T1m1Sensor Cylinder

999,796 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadCS11T1m2Sensor Cylinder

909,284 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1301m1Sensor Cylinder

1,261,876 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1301m2Sensor Cylinder

953,848 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1303m1Sensor Cylinder

1,351,021 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1303m2Sensor Cylinder

925,702 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1531m1Sensor Cylinder

1,295,271 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1531m2Sensor Cylinder

967,920 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Flange typeNo knuckleMale threadZC1533m1Sensor Cylinder

607,337 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Eye typeNo knuckleMale threadNoneNoneNoneSensor Cylinder

650,524 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadNoneNoneNoneSensor Cylinder

867,690 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadCS11T1m1Sensor Cylinder

1,086,836 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadCS11T1m2Sensor Cylinder

996,689 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1301m1Sensor Cylinder

1,349,710 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1301m2Sensor Cylinder

1,041,252 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1303m1Sensor Cylinder

1,441,363 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1303m2Sensor Cylinder

1,383,453 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1531m2Sensor Cylinder

1,052,980 IDR

1 Piece(s) 18 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1533m1Sensor Cylinder

1,467,810 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Pivot mounting type (with support bracket, pin, retaining ring)No knuckleMale threadZC1533m2Sensor Cylinder

1,046,760 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Eye typeNo knuckleMale threadCS11T1m2Sensor Cylinder

866,720 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Eye typeNo knuckleMale threadCS11T3m1Sensor Cylinder

1,128,470 IDR

1 Piece(s) 14 Day(s) or more Double Acting[Standard] Standard650 to 60-Eye typeNo knuckleMale threadCS11T3m2Sensor Cylinder

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Basic Information

Rod Operation Method Single Rods Additional Function Standard Environment, Applications Standard
End Locking No Valves No Max. Operating Pressure(MPa) 0.7

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
Tel:021-8990-4102 / FAX:021-8990-5803
8:30am - 5:30pm (Monday - Friday)