2019欧美hd精品

Logistics aspects cause contamination

Such as the original fabric and semi bleached cloth are loaded and unloaded in the factory, due to the packing is not standardized，they are stepped on the footprints. The footprints are still on the finished cloth in dyeing and printing even after pretreatment and cleaning.

Processing equipments cause contamination

Equipment aging, rust, plus cleaning is not in time, or the oil pollution left by the breakdown maintenance will cause contamination.

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