本文由成都市(shi)恒大玫德(de)貿易有限公(gong)司為(wei)大家講述鋼(gang)管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)材的(de)分類：1、按生產方法(fa)分類（1）無縫管(guan)(guan)(guan)(guan)——熱軋管(guan)(guan)(guan)(guan)、冷軋管(guan)(guan)(guan)(guan)、冷拔管(guan)(guan)(guan)(guan)、擠壓管(guan)(guan)(guan)(guan)、頂管(guan)(guan)(guan)(guan) 。（2）焊(han)管(guan)(guan)(guan)(guan) 。（a）按工藝分——電弧焊(han)管(guan)(guan)(guan)(guan)、電阻焊(han)管(guan)(guan)(guan)(guan)（高頻、低頻）、氣

四(si)川熱鍍(du)鋅鋼(gang)管(guan)的(de)優缺點介紹(shao)：熱鍍(du)鋅鋼(gang)管(guan)是(shi)將帶鋼(gang)或卷板按螺旋形彎曲成(cheng)(cheng)形，用雙面埋(mai)弧自動焊(han)進行內縫和外(wai)縫的(de)焊(han)接制成(cheng)(cheng)的(de)熱鍍(du)鋅鋼(gang)管(guan)，由(you)于以下原因它能廣泛(fan)地(di)應用于水，電，化工等(deng)行業生產中：1）只要改變(bian)成(cheng)(cheng)形角度，