04
2020-12
A variety of elbow grades you understand?
Elbow is commonly used in plumbing installation of a connection with pipe fittings, used for pipe bend connection, used to change the direction of the pipe.
01
2020-12
Quality standard and use method of the size head
The corresponding standards for flanges and tubesheets matched with pressure vessels of the power department standard GD0506 ~ 0507 of the large and small heads: JB/T4700 ~ 4707-2000 implement the national standards (GB/T9112-2000), the standards of the machinery department (JB/T81-1959,JB/T74-1994), the standards of the petrochemical department (SH3406-1996), the standards of the chemical department (HG/T5010-1958,HG/T20592-2009), etc. Export forged steel flange material in line with the United States ASTM A105 standard.
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