Please help me find out what the size of this head is.
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Please help me find out whether the size of this head is the European standard or the American standard. What does 20179 mean? Thank you very much.
Measure the outer diameter, so you can't tell which standard it is by visual inspection. 20179 is the furnace number, right?
Okay, let me know more about the specific situation. Thank you very much.
Okay, let me know more about the specific situation. Thank you very much.
When I was guessing here, I took out the pipe fittings quality certificate and everything is there? ! The pipe fittings have no TS mark and no quality certificate. Do you dare to use them? ! Taking responsibility? The Market Supervision Bureau agrees with Y(^_^)Y? ! It seems like a trivial matter, but it’s actually not trivial\ud83d\ude3f
Didn’t you write it? 4 * 3”, imperial size
Concentric reducer 4* 3” (100×80) CONC.REDUCER,Sch160sXS,BW,15CrMo,SMLS,GB/T 12459 (I),GB/T 8163