... Excellent quality and services; Certification:ISO14001 ISO9001 SGS Specifications Custom made bolts screws Process Capablilities Standard ISO, GB, DIN, ... client’s requires About us: Xiamen Haixingcheng Metal Products Co., Ltd. is a manufacturer of screws with well-equipped ... , and mainly produces forged fastener precise screws, which are made of titanium, copper, aluminum, iron, stainless steel and ...