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China GB Standards List

 HG/T 2232-1991  
(Noryl plastic)

改性聚苯醚工程塑料
 HG/T 2166-1991  
(116 weak acid cation exchange resin acrylic)

116弱酸性丙烯酸系阳离子交换树脂
 HG/T 2222-1991  
(TSP in the determination of free water. Vacuum oven method)

重过磷酸钙中游离水分的测定 真空烘箱法

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