國內外不銹鋼管生產標準明細
目前(qian)不銹(xiu)鋼(gang)管(guan)(guan)有兩種制(zhi)造(zao)(zao)管(guan)(guan)子的(de)方式(shi)(shi):無縫鋼(gang)管(guan)(guan)(seamless)、焊(han)接(jie)或是電阻(zu)焊(han)接(jie)(electricresistancewelding,ERW)。無縫鋼(gang)管(guan)(guan)是用(yong)擠型或是輥(gun)式(shi)(shi)穿孔方式(shi)(shi)+冷軋或冷拔(ba)相結(jie)合制(zhi)造(zao)(zao)。焊(han)接(jie)或電阻(zu)焊(han)接(jie)管(guan)(guan)(Electricresistancewelding)是...