我国钢管工业发展历程

Tuam Tshoj cov hlau yeeb nkab kev lag luam tau pib thaum xyoo 1950, qhia txog cov tub txawg ua ntej, thiab ua rau lub hauv paus rau kev txhim kho. Nyob rau xyoo 1960 {{{- 70s, domestically proding φ100mm Tube Rolling hloov kev siv tes vuam, thiab cov qauv tsim qauv tau tsim kev schwide. Tom qab kev hloov kho thiab qhib, kev thev naus laus zis zoo li cov siv rolling txuas ntxiv rolling mills tau qhia, nqa cov khoom siv rau cov qauv thoob ntiaj teb. Txij li 21st caug xyoo, Tuam Tshoj tau dhau los ua neeg thoob ntiaj teb thiab cov neeg siv khoom ntawm cov khoom tso zis hlau, nrog kev tso zis siv hlau, nrog rau 70% ntawm kev tsim khoom thoob ntiaj teb. Nyob rau hauv xyoo tsis ntev los no, kev tsim khoom tau stabilized nyob rau ib ncig ntawm 50 lab tons, feem ntau siv hauv av, tshuab, thiab lub zog hluav taws xob txog 9 lab tons.