screws (screws)

Tangshan Guofeng Screws Co.,Ltd. found in 2000.I am a manufacturer in china.We specialize in chipboard screw, wood screw and dry wall screw with the capability of more than 5000 tons per year.Standard covers: GB, JS, DIN, ISO,BS. Our company has the advanced equipment and abundant design ability. The material of above product is low carbon steel.