Hex Bolts(Hot forged), Socket head Bolts, Non-standard Customized Bolts

Tapping, rolling centralized feeding machine, bolt and nut centrifugal feeder, wheel nut automatic welding machine, thread rolling machine automatic feeding machine, sorting machine centralized feeding machine, manual sorting semi-automatic packaging machine

Gb6170, sh3404, hg20613, hg20634, gb6175, etc

Steel structure large hexagon head bolt; Steel structure torsion shear type bolt; Grade 4.8; Grade 6.8; Grade 8.8 Grade 10.9; Grade 12.9; Hexagon bolt; Nut; Flat washer; Stud; Foundation; Tension rod; Anchor bolt

Hexagon bolt, high-strength steel structure large hexagon bolt, hex socket cap screws, non-standard bolt, automotive parts bolt, B7 stud bolt, thread bar,hex nuts

Management of National Standards and Mechanical Industry Standards

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