9 Chrome Tanning

Inchrometannage,pickledpeltistreatedwithbasicchromesulphate.Eachchromecomplexmoleculereactswithseveralcarboxylgroupsofcollagentoproducecrosslinkingbetweendifferentmoleculechainsofthecollagen.Thiswillstrengthenthefibernetworkofthepickledpeltandconvertthepe ......      (共9989字)     [阅读本文]>>



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