... 2.big hardness 3.high speed double 4.can keep balance stamping cable spools The products are exactly according to GB4004-83 and ... plate corrugated, punched and welded into shape, featuring high strength and high stiffness, applicable to cross linking, stranding, extruding, cabling and armoring ... With the big hardness and light weight it can fit for using in the tubular type, frame type and fork type ...