宁波市镇海区贵驷朝阳五金螺钉厂
Ningbo Zhenhai Guisi Zhaoyang Hardware Screw Factory
宁波市镇海区贵驷朝阳五金螺钉厂
hexagon socket cap screws (DIN 912 - 1983) 主打
material Alloy Steel
grade, rigidity Grade 12.9 (HRC39~44)
Coating black oxide coating
规格:M20-M24 长度:50MM-250MM