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+86-537-3281595

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Shandong Jining Qingfeng Machinery Hardware Co.,Ltd

Add: NO.47 Jinyu Road, Jining, Shandong

Contact: Qin Wang

Tel: +86-537-3281595

Fax: +86-537-3281597

Mobile: +8613705473076

E-mail:info@qfmh.com

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Wrench Is A Commonly Used Disassembly Tool

Wrench is a commonly used installation and removal tool, is the use of the lever principle to screw bolts, screws, nuts and other thread fastening bolts or nuts of the opening or the sleeve of the hole firmware manual tool. Wrenches are usually made of structural steels of carbon or alloy materials.

Wrenches usually have openings or sockets with clamped bolts or nuts at one end or at both ends of the shank, and when used, the bolts or nuts can be twisted by applying external forces to the handle in the direction of the thread rotation.

Wrench testing Requirements: 1. Shall not have rust, burrs, cracks and spots, etc. 2. The opening is symmetrical, the laser lettering should be clear; 3. Hardness to meet the specified standards, and the card position to be accurate; 4. The turbo wrench of the turbine operation to be flexible, the pin shaft can not loose.


Contact Us
Shandong Jining Qingfeng Machinery Hardware Co.,Ltd

Address: NO.47 Jinyu Road, Jining, Shandong

Tel: +86-537-3281595

Fax: +86-537-3281597

E-mail: info@qfmh.com

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