Preface
At the turn of the last century most non-fuel industrial products;
dyes, inks, paint, medicines, chemicals, clothing, synthetic fibres
and plastics were made from biobased resources. By the 1970s
petroleum-derived materials, had to a large extent, replaced
those materials derived from natural resources. Recent developments
Devamı...
Şifre:''www.forumfood.net''
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