Size: M16-M50
Material: Spring steel 65Mn,60Si2Mn, 38Si7
Surface treatment: Black Oxide, Zinc plated, HDG, Galvanized, Plain (Oiled), Dacromet.
+86 318 8816 666
+86 318 6175 555
info@jzyxfastener.com
live:yixinfastener 
No.999 Yongxing West Road, Jizhou District, Hengshui City, Hebei Province, China
