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[國外標(biāo)準(zhǔn)] EN ISO 15614-12-2004 Specification and qualification of welding procedures for metallic materials-Welding procedure

P:2008-02-20 15:52:20

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EN ISO 15614-12:2004
Specification and qualification of welding procedures for metallic materials - Welding procedure test -
Part 12: Spot, seam and projection welding

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