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Pibellau Strwythur Pibellau Petroliwm

Trosolwg o Pibellau Strwythur Pibellau Petroliwm

Pibellau Strwythur Pibellau Petroliwm

ASME SA106, ASME SA179, ASME SA192, ASME SA210, ASME SA213, ASME SA335, ac ati

Gradd O Pibellau Strwythur Pibellau Petroliwm

API 5L PSL1, PSL2

API 5L

API 5L Gr.B X42 X52 X60 X65 X70 Etc

API 5CT-2018 Casio a thiwbiau

API 5CT

API 5CT J55, K55, N80, N80Q, ac ati
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