Washers manufacturers DIN7603 Sealing Washers High quality copper flat washers with high conductivity perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. Feature and Advantage 1. All the flat washers are made of copper, which with high conductivity, corrosion resistant. They have a tighter seal and high heat resistance than steel and rubber washers. http://www.shallfastener.com/washers/
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