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Pipe Fittings Industry Standards
Aug 23, 2016

1) GB/T 12459-2005 of the steel butt-welding seamless pipe fittings

2) GB/T 13401-2005 of the steel plate butt-welding pipe fittings

3) DL/T 695-1999 of the power station steel butt-welding pipe fittings

Steel butt-welding seamless pipe fittings SH SH 3408 3409 steel butt-welding pipe fittings

SH 3410 forged steel socket-welding pipe fittings

HGJ514-87 carbon steel, low-alloy steel butt-welded seamless fittings

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