304 material column head wave bead positioning screw spring telescopic pin thread positioning plunger M4-M12

 
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brand:
Huayang
model:
M3M4M5M6M8M10M12
place of origin:
Chinese mainland
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M3*6*1*1 2M3*8*2*1 0M3*10*2*1 0M3*15*3*1 0M4*8*2*1 6M4*8*2*2
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