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发表于 2020-5-11 10:07
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来自: 中国辽宁大连
(E)STPG-370(38)E Carbon steel pipes for pressure service, Electric arc/resistance weld
(S)STPG-370(38)S Carbon steel pipes for pressure service, Seamless
(G)SGP Carbon steel pipes for ordinary piping, Butt weld or Electric arc/resistance/etc. weld,
(T)STPT-370(38) Steel Pipe for High-Temperature Services.
E4: Carbon steel pipes for pressure service, Electric arc/resistance weld, Thickness SCH40(or B).
FYI.
And should be found in SYMBOL part in piping diagram. |
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