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Introduction to the Executive Standard of Welded Ball Valves

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Executive Standard for Welded Ball Valves:

1、Design and Manufacturing:GB12237、API608、API 6D、JPI 7S-48、BS5351、DIN3357。

2、Flange size:JB/T74~90(JB74~90)、GB9112~9131、HGJ44~76、SH3406、ANSI B16.5、JIS B2212~2214、NF E29-211、DIN2543.

3、Structure length:GB12221-89、ANSI B16.10、JIS B2002、NF E29-305、DIN3202.

4、Check the main test:JB/T 9092、API 598.

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