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1.1本标准规定了砂型铸造、金属型铸造、低压铸造、压力铸造和熔模铸造等铸造工艺方法生产的各种铸造金属及合金铸件的尺寸公差.
1.1 This standard specifies the dimensional tolerances of various cast metal and alloy castings produced by casting processes such as sand casting, metal casting, low pressure casting, pressure casting and investment casting.