1.j bolt .Kami uga diarani (bolongan sauh, bolongan sutra dhasar, bolt lemah) 2.Kanggo nggunakake Bahan kasebut: baja karbon, 45 # baja, 40 Cr, 35CrMo; 3.Surface Finishing: seng dilapisi utawa ireng utawa kosong utawa HDG; 4.Size: M6-M64; dawa 12mm-3000mm 5.Grade: 4.8 8.8 10.9 12.9 6.Standard: DIN, JIS, BS, ASME ...
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