温州市丰鼎紧固件制造有限公司
Wenzhou Fengding Fastener Manufacturing Co., Ltd.
温州市丰鼎紧固件制造有限公司
10.9 High-Strength Flange Screw (DIN 6921 - 1983)
material Carbon steel
grade, rigidity grade 10.9
Coating electroplating