Ashland亚什兰Natrosol 250H4BR羟乙基纤维素HEC内附TDS
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Ashland亚什兰Natrosol 250HEC羟乙基纤维素系列:Natrosol 250 HBR羟乙基纤维素、Natrosol 250 HHR-PC羟乙基纤维素(个人护理和化妆品级)、Natrosol 250 HHBR羟乙基纤维素、Natrosol 250 H4BR羟乙基纤维素、Natrosol 250 LR羟乙基纤维素、Natrosol 250 MHBR羟乙基纤维素、Natrosol 250 GR羟乙基纤维素