• 铲磨、清理造成不正确的粗糙度                                               
    简介:16104INCORRECTROUGHNESS–GRINDINGBUTTHEROUGHNESSOFTHEASCASTSURFACESISNOTACCORDINGTOTHEREQUIREMENTSTHEDEFECTAPPEARSMOSTLYTOGETHERWITHALLOTHERTYPEOFDEFECTNO7503ASISLACKOFMATERIALAND5601,5602AND5603ASEXTRAMATERIALTHEDEFEC
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