erti-33 cda

Common raw materials

Forging display

CNC processing

TA18 ERTi-9

2023224 · :,,,

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.doc - - GB_T_8110-2008、.pdf ...•

ASME SECTION II C SFA-5.16-SFA-5.16M-2008 ...

2020630 · ERTi-9 now conforms to the lower interstitial levels of the previous classification ERTi-9ELI (AWS A5.16/A5.16M:2004). 2008a SECTION II, PART C SFA

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CDA? -

2020730 · CDA,,1,:、、、

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BDA,CDA,CPDA( ...20211227CDA LEVEL1? - 20201212CDA? - 202084CDA? - 2019121

1CDA? ...