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2,833 products. flat washers protect surfaces by evenly distributing torque when a bolt or screw is tightened. they prevent corrosion between a steel screw and an aluminum surface. a nylon washer can be placed under a machine screw to reduce noise and abrasion and offer electrical insulation. sealing washers are used for plumbing and hydraulic projects.

Security screws. we are manufacturer and exporters of security screws. these screws are used for security purposes. the head of this type of screw is impossible to reverse. it requires special tools or mechanisms like spanners, tri-wings, torxes square drivers, etc. we can make as per customers drawing or samples. features: impeccable finish

Anodizing (or anodising) is an electrochemical process used to increase the thickness of the natural oxide layer on the surface of metal parts. the process is referred to as "anodizing" because the parts to be treated form the anode electrode of an electrical circuit.

Plastic plating manufacturer/supplier, china plastic plating manufacturer & factory list, find qualified chinese plastic plating manufacturers, suppliers, factories, exporters & wholesalers quickly on made-in-china.

We attach value to innovation, especially with patents of China on buy drilling screw, its superb technology has reached the international sophisticated level, and has a high reputation within the buy drilling screw industry. Our group not only has excellent researchers and business nationwide sales and service network, but additionally are China shoppers specified brand companies.


Our corporation mostly engaged and export buy drilling screw. we rely on sturdy technical force and constantly create sophisticated technology to meet the demand of buy drilling screw consumers. We are sincerely welcome close friends from different circles at residence and abroad come to cooperate!

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