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
(ASME B 18.2.1 - 2010) 促销
material Carbon Steel
Coating black oxide coating