... OEM from China; Certification:ISO14001 ISO9001 Specifications Countersunk chipboard screws Process Capablilities Standard ISO, GB, DIN, JIS, ANSI ... Haixingcheng Metal Products Co., Ltd. is a manufacturer of screws with well-equipped testing equipment and strong technical force ... area, and mainly produces forged fastener precise screws, which are made of titanium, copper, aluminum, iron, stainless steel ...