Roj Roj Pipes Qauv Kav

Txheej txheem cej luam ntawm roj av kav cov qauv kav dej

ASME SAK6, ASME SA179, ASME SA192, ASME SA192, ASME SA210, ASME SA213, ASME SA335, thiab lwm yam

Qeb ntawm Petroleum kav cov qauv kav dej

API 5L PSL1, PSL2

API 5L GR.B X42 X52 X60 X65 X70 thiab lwm yam

API 5CT-2018 Casing Thiab Tubing

API 5CT J55, K55, N80, N80Q, thiab lwm yam