BSW7/8"×2-1/2“(3-1/8")
Material: 45#
Grade:8.8
Tensile strength:≥830MPa
Yield strength:≥660MPa
Elongation:≥12%
Surface:Black
Material: 40Cr
Grade:10.9
Tensile strength:≥1040MPa
Yield strength:≥940MPa
Elongation:≥9%
Surface:Black
JSCC Track Material
Tel: +86 17712612177 Fax: +86 51981234002
Address:7#1315 ,No.9 ,Taihu East Road, Xinbei District Changzhou ,Jiangsu ,China