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sheng huo xiao chang shi
Pages: 23
Year: Issue:  5
Journal: Farm Machinery

Keyword:  塑料带蜡布面漆耐水性漆膜北京科技报日光照射化学物质南水渗进;
Abstract: <正>不要包扎自行车有人喜欢用塑料、蜡布带将新自行车的车架大梁包扎起来,以为可以起到保护作用。其实适得其反,包扎时间过长,反使油漆受损,轻者失去光泽,重者面漆大块脱落。这是因为夏天雨水、冬天冰融成水会逐渐从塑料带缝中渗入,时间一长,面漆的耐水性下降,漆膜皱裂,以致脱落。另
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