our plastics are DOP .DEHP free .DEHP 和DEHP FREE 说的是两种增塑剂吗

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our plastics are DOP .DEHP free .DEHP 和DEHP FREE 说的是两种增塑剂吗 Examples of homogeneous materials are individual types of plastics,ceramics. plastics是什么意思 plastics works DOP是什么意思? DOP是什么意思 什么是DOP? Because there are different types of plastics that cannot be mixed翻译 plastics are the best insulator of electricity,rubber following it closely吗意思 i was told that some biks are made of plastics instead of steel Coal and oil are most_materials for the manufacturing of plastics.A artificial B building C raw Dsolid 选哪个?为什么 plastics machinery什么意思 英语翻译Cutting Other Materials:The machining of plastics,fiber-reinforced plastics,graphite,asbestos,and other hard and abrasive constructional materials mainly requires abrasionresistance.Cutting pressures and power requirements are generally l 英语翻译The role of plastics The unhygienic use and disposal of plastics and its effects on human health has become a matter of concern.Colored plastics are harmful as their pigment contains heavy metals that are highly toxic.Some of the harmful Now plastics can ___ steel in many ways of our life.a.take place b.take the place of c.instead of d.be taken place dop是什么?什么用途? 什么是DOP测试 DOP有什么作用