Chitoliro chachitsulo ndi ntchito yomwe imagwiritsidwa ntchito kwambiri papaipi ya gasi. Ubwino wake waukulu ndi: kulimba kwakukulu, kulimba bwino, kupirira kupsinjika, kukana kwamphamvu komanso zolimba, pulasitiki yabwino, kuwotcherera kosavuta komanso kukonza matenthedwe, makulidwe a khoma ndiochepa, kupulumutsa zitsulo. Koma kukana kwake kosauka kwa dzimbiri, kumafunika kukhala ndi njira zotsutsana ndi dzimbiri.

Mapaipi achitsulo a mapaipi a gasi mumzinda waukulu wa chitoliro chopanda msoko ndi chowotcherera zitsulo m'magulu awiri. Mkulu mphamvu osasokonekera zitsulo chitoliro, koma kuchepetsa ndondomeko kupanga ndi ndalama zambiri yaing'ono m'mimba mwake zitsulo chitoliro DN200 pansipa. Mitundu yambiri yamapaipi opangidwa ndi chitsulo, kuwotcherera amatha kugawidwa ndi mipope yowongoka yachitsulo yowongoka komanso mipope yachitsulo yozungulira. Pakati pawo, molunjika msoko welded zitsulo chitoliro (pano amatchedwa molunjika msoko chitoliro) mulinso LSAW zitsulo chitoliro ndi mkulu pafupipafupi kukana kuwotcherera (RW) zitsulo chitoliro ndi mitundu ina. Spiral welded steel chitoliro (saw zitsulo chitoliro) ndi ozungulira msoko iwiri kumizidwa arc welded (HSAW) chitoliro.

Njira yopangira chitoliro chowongoka komanso yozungulira ikuyerekezedwa, yoyamba ili ndi mwayi:
① njira yopangira chitoliro chozungulira kuti muwone kuti kupsinjika kwawo kotsalira ndikokulirapo kuposa chitoliro chowongoka chamsoko, chitoliro chowongoka chamsoko ndi zotsatira zonse zakukulitsa, kupsinjika kotsalira pafupi ndi ziro, pomwe ozungulira sangathe kuchita izi;

② spiral weld wolakwika mbali makamaka mu osiyanasiyana 1.1 ~ 1.2mm, muyezo amafuna kuchuluka kwa mbali yolakwika ya khoma makulidwe osachepera 10% kwa machubu woonda-mipanda, mbali yolakwika ndi yovuta kukwaniritsa zofunika muyezo, ndi chitoliro chamsoko wowongoka kulibe Vutoli;

③ Poyerekeza ndi chitoliro chowongoka chamsoko, ozungulira weld line otaya ndi osauka, kupsinjika maganizo ndende;

④ koyilo kutentha okhudzidwa zone ndi wamkulu kuposa chitoliro molunjika chitoliro, ndi chitoliro kutentha anakhudzidwa zone ndiye chinsinsi khalidwe;

⑤ kulondola kwa geometry yozungulira, kumalo omanga, monga mnzake, kuwotcherera kumabweretsa zovuta.