发布时间:2025-01-31 10:06:27
AS材质不具有耐高温的特性,容易释放有毒物质,因此AS水杯不能盛热水。
AS指AS树脂,学名丙烯腈苯乙烯共聚物,是由丙烯腈与苯乙烯共聚而成的高分子化合物。一般含苯乙烯百分之十五岛百分之三十,是透明而琥珀针色的固体;有热塑性;不易变色。不受稀酸、稀碱、稀醇和汽油的影响。
下图是某工厂厂房的平面图是按照实际的长和宽各缩小到原来的万分之一后画出的这个厂房的实际占地面积
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