... products made of carbon steel, alloy & stainless steel, aluminum, brass or other special materials. For finishing, we provide black oxide, zinc ... dip galvanization, and Dacromet. Our products are produced in conformity with DIN, ANSI, AS, BS, JIS, GB and ISO standards, ... our international market shares. If you are interested in cooperating with us or our products, please don't hesitate to contact us ...