1.綏(sui)化(hua)(hua)(hua)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)：水(shui)、煤氣管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、蒸汽管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、石(shi)(shi)(shi)(shi)(shi)油(you)輸送管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、石(shi)(shi)(shi)(shi)(shi)油(you)天然氣干線用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。農業灌溉用(yong)(yong)(yong)(yong)(yong)(yong)水(shui)龍頭(tou)帶管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)噴灌用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。 2.綏(sui)化(hua)(hua)(hua)熱(re)(re)工(gong)(gong)(gong)設備用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)一般鍋(guo)爐用(yong)(yong)(yong)(yong)(yong)(yong)的(de)沸水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、過熱(re)(re)蒸汽管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，機(ji)車鍋(guo)爐用(yong)(yong)(yong)(yong)(yong)(yong)的(de)過熱(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、大煙管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、小煙管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、拱(gong)磚管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)以(yi)及(ji)(ji)(ji)高(gao)(gao)溫高(gao)(gao)壓(ya)鍋(guo)爐管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。 3.機(ji)械工(gong)(gong)(gong)業用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)航空結構管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)（圓(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、橢圓(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、平(ping)橢圓(yuan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)），汽車半軸管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、車軸管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、汽車拖拉機(ji)結構管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、拖拉機(ji)的(de)油(you)冷卻器(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、農機(ji)用(yong)(yong)(yong)(yong)(yong)(yong)方(fang)形管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)與(yu)矩(ju)形管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、變壓(ya)器(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)以(yi)及(ji)(ji)(ji)軸承用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。 4.綏(sui)化(hua)(hua)(hua)石(shi)(shi)(shi)(shi)(shi)油(you)地(di)質鉆探(tan)(tan)用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)：石(shi)(shi)(shi)(shi)(shi)油(you)鉆探(tan)(tan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、石(shi)(shi)(shi)(shi)(shi)油(you)鉆桿(gan)（方(fang)鉆桿(gan)與(yu)六角鉆桿(gan)）、鉆挺、石(shi)(shi)(shi)(shi)(shi)油(you)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、石(shi)(shi)(shi)(shi)(shi)油(you)套管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)及(ji)(ji)(ji)各種管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)接頭(tou)、地(di)質鉆探(tan)(tan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)（巖心管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、套管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、主動鉆桿(gan)、鉆挺、按(an)箍及(ji)(ji)(ji)銷(xiao)接頭(tou)等）。 5.綏(sui)化(hua)(hua)(hua)化(hua)(hua)(hua)學(xue)工(gong)(gong)(gong)業用(yong)(yong)(yong)(yong)(yong)(yong)無(wu)縫鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)：石(shi)(shi)(shi)(shi)(shi)油(you)裂(lie)化(hua)(hua)(hua)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，化(hua)(hua)(hua)工(gong)(gong)(gong)設備熱(re)(re)交換器(qi)(qi)及(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、不銹耐酸管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、化(hua)(hua)(hua)肥(fei)用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)壓(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)以(yi)及(ji)(ji)(ji)輸送化(hua)(hua)(hua)工(gong)(gong)(gong)介(jie)質用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。 6.其(qi)他各部門用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。如(ru)(ru)：容(rong)器(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)（高(gao)(gao)壓(ya)氣瓶用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)與(yu)一般容(rong)器(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)），儀表儀器(qi)(qi)用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、手表殼用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、注射針(zhen)頭(tou)及(ji)(ji)(ji)其(qi)醫療器(qi)(qi)械用(yong)(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。