具體規格有:
鋼 帶:0.2-3.0 * 20-300
圓 管:9, 12, 14, 16, 18, 19, 19.7, 22, 25, 27, 30, 32, 38, 42, 46, 48, 51, 57, 60, 63, 76, 89, 101
方 管:11*11, 12.7*12.7, 16*16, 19*19, 20*20,22*22， 25*25, 30*30, 38*38, 40*40, 50*50,60*60
矩形管:20*10, 15*30, 23*11, 25*13, 33*21, 38*25, 25*50, 20*40, 40*60, 60*30, 45*75,100*20
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