Chitoliro chachitsulo chosasunthika chomwe chimagwiritsidwa ntchito kwambiri padziko lonse lapansi ndi chitoliro chapamwamba kwambiri ndipo chimagwiritsidwa ntchito kwambiri m'makampani, makampani opanga mankhwala, zomangamanga ndi zina. Mapaipi achitsulo osasunthika amakondedwa ndi makampani chifukwa champhamvu zawo, kukana kwa dzimbiri, komanso kukana kutentha kwambiri. Palinso miyeso yofananira potengera kutsimikizika ndi makulidwe a khoma. Zotsatirazi ndi mndandanda wa mayiko seamless zitsulo chitoliro ndi mfundo makulidwe khoma:
Zofotokozera:
1. Miyezo yaku America:Chithunzi cha ASTM A106, Chithunzi cha ASTM A53, API 5LASTM A192,ASTM A210, ASTM A213ndi zina;
2. Miyezo ya ku Japan: JIS G3454, JIS G3455, JIS G3456, JIS G3461, JIS G3462, etc.;
3. Miyezo ya Germany: DIN 1626, DIN 17175, DIN 2448, DIN 2391, etc.;
4. Miyezo yaku Britain: BS 1387, BS 3601, BS 3059, BS 6323, etc.;
5. Miyezo yaku Europe:EN 10210EN 10216, EN 10297, ndi zina;
6. Miyezo yaku China:Mtengo wa GB/T8162, GB/T 8163, GB/T 3087, GB/T 5310, GB/T 6479, etc.
Wall makulidwe muyezo:
1. SCH10, SCH20, SCH30, SCH40, SCH60, STD, SCH80, XS, SCH100, SCH120, SCH140, SCH160, XXS, ndi zina zotero;
2. WT: 2.0-60mm, SCH10S, SCH40S, SCH80S, etc.;
3. Pankhani ya kusowa kwa zipangizo kapena kufunikira kwakukulu, mapaipi ena ang'onoang'ono angafunike kusinthidwa malinga ndi zosowa zenizeni.
Zomwe zili pamwambazi ndizomwe zimapangidwira komanso makulidwe a khoma la mipope yapadziko lonse yopanda zitsulo. Mafakitale osiyanasiyana ndi zofunikira zogwiritsiridwa ntchito zimafunikira kusankha kofananira ndi makulidwe a khoma. Mutha kusankha zomwe zikugwirizana ndi zosowa zanu zogula.