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The label method of stainless steel
From;    Author:Stand originally


GB1270-80 does not become rusty tubal material (I class)

GB12771-91 does not become rusty solder is in charge of (Y class)

GB3280-84 does not become rusty cold board (I class)

GB4237-84 does not become rusty heat board (I class)

GB4239-91 does not become rusty cold take (I class)

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