六角头细杆螺栓(细杆直径约等于中径)- 产品等级:B级 Hexagon Head Bolts - Reduced Shank(Shank Diameter≈Pitch Diameter) - Product Grade B
六角头细杆螺栓,B级 Hexagon Head Bolts-Product Grade B-Reduced Shank(Shank Diameter≈Pitch Diameter)
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