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type:4grade,8 grade,ect....
size:M3-M60 lenght:10-350mm
finish:zinc plate,yellow zinc plate,black,hot dip galvanizing ect.....
packing:small box packing,20kgs/carton,25kgs/carton,25kgs/gunny bag,48kgs/gunny bag,900kgs/pallet
Din 571 Hex Wood Screw