China flexible building stainless steel cable network factory。

S30403 and S30408 explanation

by:Candurs     2020-07-29
S and S,

GB is executive standard of pressure vessel.

is a new brand, is a new brand L. It is the corresponding standards of GB. They are a standard, is a brand.

if the customer wants to let's have to GB standards board

if the customer wants to GB standard has two kinds: CrNi (A, B Can also perform standard)
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