钢带0.2-3.0*20-300硬度：软态，中硬，全硬态。圆管:9,12,14,16,18,19,22,25,27,30,32,35,38,39.42,46,48,50,52,57,60,63,65、76、80、89、101方管:11*11,12.7*12.7,14*14,15*15,16*16,17*17,19*19,20*20,22*22,25*25,30*30,35*35,38*38,40*40,50*50,60*60矩形管:15*8,20*10,23*11,25*13,25*15、30*15,30*20,33*21,38*25,40*20,40*30,50*25,60*15,60*30,60*40,75*15,75*45,80*10,80*40,100*20,100*50椭圆管：75*42，62*38，46*28，38*23，70*30)