冷鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)就是電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)量(liang)很少(shao)，只要10-50g/m2,其(qi)自身的耐腐蝕性(xing)比(bi)熱鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)管相差很多。正軌的鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)管消費廠(chang)家，為(wei)了保證質量(liang)，大多不采(cai)用電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(冷鍍(du)(du)(du)(du)(du))。只要范圍小、設備陳舊(jiu)的小企業采(cai)用電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)，當然他們的價錢也相對廉價一些(xie)。建立部已正式下文，淘汰技(ji)術落后的冷鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)管，不準用冷鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)管作水、煤氣管。

  普通如(ru)今用(yong)的(de)(de)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼管(guan)(guan)都是熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)的(de)(de)，而電氣上用(yong)的(de)(de)線槽等用(yong)的(de)(de)是冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)，顏色(se)有(you)(you)一定的(de)(de)區別，冷(leng)鍍(du)(du)只(zhi)在(zai)外(wai)(wai)管(guan)(guan)壁(bi)(bi)鍍(du)(du)鋅(xin)(xin)(xin)(xin)，熱鍍(du)(du)內外(wai)(wai)都鍍(du)(du)，鍍(du)(du)鋅(xin)(xin)(xin)(xin)焊管(guan)(guan)是在(zai)焊接鋼管(guan)(guan)的(de)(de)根底(di)上再熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)(即(ji)在(zai)鋅(xin)(xin)(xin)(xin)鍋內將(jiang)鋅(xin)(xin)(xin)(xin)溶化，再將(jiang)鋼管(guan)(guan)浸入液體(ti)鋅(xin)(xin)(xin)(xin)中一段時間取(qu)出，再冷(leng)卻吹干)。使鋼管(guan)(guan)內外(wai)(wai)壁(bi)(bi)同時有(you)(you)一層鋅(xin)(xin)(xin)(xin)層附著。鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)普通用(yong)于(yu)低壓流體(ti)(即(ji)水，液體(ti)煤氣)的(de)(de)保送。 鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)市場(chang)資源較為偏(pian)緊(jin)