1.j bolt .Muna kuma kira shi (anga kusoshi, maƙallan durƙusa, ƙusar ƙasa) .Muna amfani da waɗannan Abubuwan: ƙarfe carbon, 45 # steel, 40 Kr, 35CrMo; 3.Surface Yana gamawa: zinc plated ko baki ko a bayyane ko HDG; 4.Size: M6-M64; tsawon 12mm-3000mm 5.Grade: 4.8 8.8 10.9 12.9 6.Standard: DIN, JIS, BS, ASME ...
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