螺钉
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皇冠螺钉
Location
Country/Region:
China/Guangdong
Main Products
Country/Region:
China/Guangdong
Main Products
SEM screws, high strength bolts, hex socket bolts and nuts, self-tapping screws, washers and lock rings,circlips. Grades are 4.8, 8.8, 10.9 and 12.9. The material is stainless steel A2-70, A4-80.