兑水 发表于 2009-9-10 07:45:05

ASTM A 903-1999 钢铸件磁粉探伤和荧光渗透检验的表面验收标准

A903/A903M-99(2003) Standard Specification for Steel Castings, Surface Acceptance Standards, Magnetic Particle and Liquid Penetrant Inspection
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