The variations of compositions in pigskin in leather making were described. The main compositions are protein, water, grease or oil and ash.
介绍了猪革制造过程中，其中所含胶原蛋白及化学成分的重量变化情况。
The variations of compositions in pigskin in leather making were described. The main compositions are protein, water, grease or oil and ash.
介绍了猪革制造过程中，其中所含胶原蛋白及化学成分的重量变化情况。
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