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Ruian Guotai Plastic Machine Co.,Ltd: Find professional air bubble film machine, stretch film machine, film blowing machine, bag making machine manufacturers and suppliers in China here! Please rest
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Metallurgical Processes and Defects in Steel Products . Defects in steel products are defined as deviations in appearance, shape, dimension, macro-structure / micro-structure, and/or chemical properties when compared with the specifications given in the technical standards or any other normative documents in force.