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硬质塑料板材耐冲击性能试验方法(落锤法)
Standard test method for impact resistance of rigid plastic sheeting by means of a tup(falling weight)
价格：￥0.00
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塑料耐液体化学药品(包括水)性能测定方法
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聚乙烯醇树脂残留乙酸根(或醇解度)测定方法
价格：￥0.00
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塑料密度和相对密度试验方法
Test method for density and relative density of plastics
价格：￥0.00
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