GB/T 17395 and GB/T 21835

2018-10-31View Original

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This post was last edited by anguanghui1 on 2019-6-24 at 10:23. Tables 2 in GB/T 17395 and GB/T 21835 pertain to precision welded steel pipes. So, in what situations are precision welded steel pipes used? I noticed that the outer diameter of precision welded steel pipes is different from that of ISO 4200 steel pipes I would appreciate some guidance from experts, thank you!

Reply #22019-07-12

The external dimensions of steel pipes are not intended solely for the piping industry; they are also useful in other fields as well, so there is no single answer

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GB/T 17395 and GB/T 21835

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