The purpose of eliminating organic matter. ! biodegradation by microorganisms. And can eliminate color because of the microorganism can absorb color!! Please! Cell wall make can eliminate color effectively, then sent to the shoe, when removal of สีที! Left by chemical coagulation. The dog for the factory! Using dye type! Melt be, well, such as color color color Direct Acid Basic and use of color ผสมระ between สีที! Melt, and melt to be used.
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