In the future, additional products, such as structural beams, shoes, clothing, mascara and boat parts, may also be made out of human hair, which is "a c...
Since about 57% of its mass is chlorine, creating a given mass of PVC requires less petroleum than many other polymers.HistoryPolyvinyl chloride was acc...
v 2004-2006, Treatment of acid waste water from extracting diosgenin from yam (Hubei province, RMB 75,000)v ...
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