... and international trade office.We have our own factory in china. Our main products include casting, forging, ... rubber products,valves,etc. They are widely used in auto parts,shipping--build parts, engineering machinery,mining ... electronic industry.And ours suppliers have atttained world quality system certification such as ISO9001:2000 ,QS9000,QS16949 , ... 83726047 Andy Liu stainless steel check valve