reducing pipe
Reducing pipe, also known as large and small head, is one of the chemical pipe fittings, used for the connection of two different pipe diameters. Reducing pipe materials include stainless steel reducing pipe, alloy steel, reducing pipe carbon steel size head, reducing pipe 20 steel q234q345 and so on. It is also divided into concentric size head and eccentric size head.
Keyword： reducing pipe
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Product standard
The national standard, the United States standard, the British standard and various non-standard high-pressure stamping "steel plate welding pipe fittings" GB/T13401-2005 requirements of reducing pipe standards
The quality of reducing pipe should comply with the current national standard "steel butt welded seamless pipe fittings" GB/T 12459-2005
Ministry of Power standard GD0506~0507
National standard (GB/T9112-2000)
Ministry of Machinery Standard (JB81-59, JB/T74-94)
Ministry of Lithology Standard (SH346-96)
Ministry of Chemical Industry standard (HG5010-58, HG20592-97)
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