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Nanjing OEM good quality CNC machining steel clamp


This clamp is assembled in the CNC machines, the clamp has the adjustable inner diameter, the positions are with high requirements, the hardness is 58-63 HRC, The treatment is nitriding, the hardness thickness is 0.1mm.


The clamp is exported to USA, annual order quantity is 1200sets.


The clamp was developed by WangQINGYOU and his team in 4 months.



Nanjing Precision Engineering Co., ltd

Product’s Parameters

1. Material:C60 with material certificate an heat treatment certificate
2. Process:Plate+ cutting+ CNC machining+ heat treatment+ powder coating
3. Service available:OEM and ODM service, the client has provided the real samples with us, we have measured and designed STEP, CAD, and PDF drawings for client freely.
4. Roughness:Ra1.6 and Ra3.2
5. Tolerance:ISO2768-M/F with dimensions’ inspection report.
6. Dimensions:Out diameter :130mm, length: 28mm
7. Traceability:Material heat no, production batch, delivery batch
8. Certification:ISO9001,SGS, Rohs
9. Net Weight:2.1KGS
10. Packing:inner: bubble poly bag; outer: carton box or poly wooden case/ pallet, final: with # straps


Nanjing Precision Engineering Co., ltd

Production time for200pcs

20-25  days

Payment Method

T/T bank, LC, Western Union Pay, PayPal, Cash...

Trade Incoterm



Small batch: express such as FedEx/ DHL/ UPS/ TNT/ EMS......
Bulk batch: by air& by sea in LCL and FCL

Logistics Service

Booking, Pick-up Arrangement, H.S CODE select, ETD and ETA notification......

Shipping Docs

Bill of lading, Packing List, Invoice, Co, Coo, Form A/E/F, Non-wood packing declaration......

After -sale service

Technology support, Inspection support, assembly support, custom clearance support......

Complaints and Claims

The complaints and the claims will be answered within 2 hours definitely

Intellectual Property Protection

Sign and Respect NDA Agreement Seriously


100% refund or replacement for nok pcs


You are always welcome to contact NJPE, we will reply to you within 8 hours absolutely after the receipt of your questions or enquiries.

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I am Cindy Fan,you please kindly send your inquriy to ,I will send you quotation with 2 hours, or contact me at Skype Cindy-fan, Wechat 86-13813884518, and Whatsapp 86-13813884518,thank you!