Ipayipi lensimbi elingenamthungo lokunwetshwa okushisayo yilokho esivame ukukubiza ngokuthi ipayipi lokunweba elishisayo. Amapayipi ensimbi anomthamo ophansi kodwa ancipha ngamandla (ipayipi lensimbi elingenamthungo) angabizwa ngokuthi amapayipi anwebekayo ashisayo. Inqubo yokuqeda ipayipi elimahhadlahhadla esebenzisa i-cross-rolling noma umdwebo ukuze kwandiswe ububanzi bepayipi. Ukwandisa ububanzi obungaphandle bamapayipi ensimbi ngesikhathi esifushane kungaveza izinhlobo ezingezona ezijwayelekile nezikhethekile zamapayipi angenamthungo anezindleko eziphansi kanye nokusebenza kahle kokukhiqiza okuphezulu. Lona umkhuba wokuthuthuka emkhakheni we-international pipe rolling.

Ipayipi lensimbi elingenamthungo elinwetshiwe elishisayo: GB/T3087-2018
Ipayipi yensimbi yokunwetshwa kwe-thermal (ipayipi lensimbi engenamthungo): GB/T3091-2018.
amazinga amanje okukhiqiza amapayipi okunwebeka ashisayo ezweni lami: ipayipi lensimbi elingenamthungo elishisayo: GB/T3087-2018

Ipayipi elikhulu elishiselwe, ipayipi lensimbi elingenamthungo, ipayipi lensimbi eligoqiwe elishisayo, ipayipi elinwetshiwe elingenamthungo, ipayipi elingenamthungo
Ama-boilers, izishintshi zokushisa, amapayipi ensimbi avunguzayo, amapayipi amanzi
Umkhiqizi wamapayipi ensimbi, umthungo oqondile ongaphansi kwe-arc enamacala amabili, Q235, Q345 impahla
Amapayipi kagesi, amapayipi obunjiniyela, amapayipi ashisayo agingqelwe, amapayipi ensimbi angenamthungo (amapayipi angenamthungo),
Ipayipi lensimbi lomthungo oqondile (umthungo oshiselwe ipayipi), ipayipi lensimbi elinwetshwe ngokushisa, ipayipi elingenamthungo, ipayipi lamandla lensimbi,
Amapayipi ensimbi okwakhiwa, izinsiza zokubhayela amapayipi ensimbi, amapayipi ensimbi amakhemikhali esiqandisi, amapayipi ensimbi akhethekile anesimo somoya,
Ipayipi lensimbi elivunguzayo, ipayipi elishiselwe ngomthungo oqondile, umthungo omkhulu oqondile wepayipi elinamacala amabili acwiliswe ngaphansi kwe-arc, ipayipi elishiselwe ngomthungo oqondile
Ipayipi elishisayo elishisayo, ipayipi elishiselwe, ipayipi elingenamthungo, ipayipi lensimbi lokudonsa amanzi, ipayipi lensimbi yokudlulisa igesi, ipayipi lensimbi elisezingeni likazwelonke
Ukunwetshwa kwamapayipi angenamthungo, ipayipi lensimbi engenamthungo eligoqiwe elishisayo, ipayipi lensimbi engagqwali eligoqeka ngokubanda