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ju lv yi xi ying zhi pin fa zhan qian jing
Author(s): 
Pages: 21-26
Year: Issue:  7
Journal: Petroleum & Petrochemical Today

Keyword:  聚氯乙烯管材塑料门窗塑料窗硬制品塑料异型材塑料管材化学建材石油化工总消费量推广应用;
Abstract: <正> 聚氯乙烯和其它热塑性塑料一样,经过挤出、吹塑、压延、模塑、滚塑、搪塑、涂刮、浸渍、发泡等成型工艺过程而制成适合人们应用的制品。塑料、钢材、木材、水泥被人们称为世界四大支柱材料,随着世界经济的发展,塑料工业也得到了迅速发展,塑料应用领域也不断扩大,市场大幅度增加,目前全世界对塑料的总需求量超
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