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etilen
A petroleum derivative (C2H4) that is the raw material for polyethylene.
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创建者
- ibrahim tutuncuoglu
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(V.I.P) 21038 分数 - 100% positive feedback
(Turkey)
A petroleum derivative (C2H4) that is the raw material for polyethylene.
(Turkey)
(V.I.P) 21038 分数