1.j boulon .Nou tou rele li (boulon jete lank, fondasyon boulon jete lenn, boulon tè) 2.Nou itilize materyèl sa yo: asye kabòn, 45 # asye, 40 Cr, 35CrMo; 3.Surface Finishing: zeng plake oswa nwa oswa plenn oswa HDG; 4. Size: M6-M64; longè 12mm-3000mm 5.Grade: 4.8 8.8 10.9 12.9 6.Standard: DIN, JIS, BS, ASME ...
Li piplis