1.j bolt .Anyị akpọkwara ya (arịlịka arịlịka, ntọala arịlịka, mkpọchi ala) 2.Ma na-eji akụrụngwa ndị a: iron carbon, 45 # steel, 40 Cr, 35CrMo; 3.Surface Emecha: zinc plated ma ọ bụ oji ma ọ bụ nke dị larịị ma ọ bụ HDG; 4.Size: M6-M64; ogologo 12mm-3000mm 5.Grade: 4.8 8.8 10.9 12.9 6.Standard: DIN, JIS, BS, ASME…
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