Ipayipi lensimbi elingenamthungo le-20G liwuhlobo olujwayelekile lwepayipi lensimbi elingenamthungo. I-"20G" egameni layo imele impahla yepayipi lensimbi, futhi "i-seamless" imele inqubo yokukhiqiza. Le nsimbi ivamise ukwakhiwa nge-carbon steel, i-alloy steel, njll., futhi inezakhiwo ezinhle zemishini kanye nokushisela. Izici eziyinhloko ze-20G ipayipi yensimbi engenamthungo ukumelana nokushisa okuphezulu, ukumelana nokugqwala, amandla aphezulu okucindezela, njll. Ngakho-ke, isetshenziswa kabanzi ku-petroleum, igesi yemvelo, imboni yamakhemikhali, amandla kagesi, ukwakhiwa kanye neminye imikhakha.

Amazinga okusebenzisa:
1. Ipayipi lensimbi elingenamthungo lesakhiwo:I-GB8162-2018
2. Ipayipi lensimbi elingenamthungo lokudlulisa uketshezi: GB8163-2018
3. Ipayipi lensimbi elingenamthungo likabhayela weshubhu elinomfutho ophansi nophakathi:GB3087-2018
4. Ipayipi elingenamthungo elinengcindezi ephezulu kubhayela:GB5310-2018
5. Ipayipi lensimbi engenamthungo elinengcindezi ephezulu yemishini kamanyolo:GB6479-2018
6. Ipayipi lensimbi elingenamthungo lokuqhekeka kwe-petroleum:GB9948-2018