Umgangatho we-ASTM A53/A53M/ASME SA-53/SA-53M

Ukusetyenziswa: kufanelekile kwiindawo zokuthwala kunye nezokuthwala, nakwimibhobho yomphunga, amanzi, igesi kunye nomoya.

Inkqubo yokwenziwa kweetyhubhu zentsimbi engenamthungo. Ngokwenkqubo yayo yokwenziwa, ityhubhu yentsimbi engenamthungo yahlulwe yaba yityhubhu yentsimbi engenamthungo eshushu egoqwe kakuhle, ityhubhu yentsimbi engenamthungo ebandayo etsalwa kakuhle, ukubhoboza kunye nokolula ityhubhu yentsimbi engenamthungo ethe nkqo ityhubhu yentsimbi engenamthungo, iintlobo ezimbini zokuqala zenkqubo kukuveliswa kwetyhubhu yentsimbi engenamthungo ngokubanzi, ityhubhu yentsimbi engenamthungo ngokubanzi ikwi-8-406, ubukhulu bodonga ngokubanzi bukwi-2-25; Ezi zimbini zokugqibela kukuveliswa kombhobho wentsimbi engenamthungo omkhulu wodonga, ububanzi bombhobho wentsimbi engenamthungo ngokubanzi bukwi-406-1800, ubukhulu bodonga ngokubanzi bukwi-20mm-220mm. Ngokwendlela esetyenziswa ngayo, ingahlulwa ibe yityhubhu yentsimbi engenamthungo yesakhiwo, ityhubhu yentsimbi engenamthungo yolwelo, ityhubhu yentsimbi engenamthungo yebhoyila kunye netyhubhu yentsimbi engenamthungo yepayipi yeoyile.