Punto d'origine
Shanghai, China
Numero del Modello
DIN931,DIN933
Material
Carbon Steel, Stainless Steel,Alloy Steel
Size
M5-M20,1/4-20,5/16-18,3/8-16
Surface treatment
Polishing
Grade
4.8, 8.8,10.9,12.9;A2-70,A4-70,Gr5
Advantage
1.OEM Service 2.Competitive 3.Good