六角頭細杆螺栓(細杆直徑約等于中徑)- 產品等級:B級 Hexagon Head Bolts - Reduced Shank(Shank Diameter≈Pitch Diameter) - Product Grade B
六角頭細杆螺栓,B級 Hexagon Head Bolts-Product Grade B-Reduced Shank(Shank Diameter≈Pitch Diameter)
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