polyesterol聚酯多元醇
polyestern.聚酯;涤纶
polyester polycondensation聚酯缩聚
polyester resin production聚酯树脂生产
polyester cotton core yarn涤棉包芯纱
polyester ready mixed paint聚酯调和漆
POLYESTER YARN IN STOCK LOT叙利亚求购库存涤纶纱
polyester base x-ray film涤纶(纤维)片基X线胶片, 聚酯纤维片基X线胶片
polyester glass fiber sheet聚酯玻纤布
polyester honey comb taslan涤纶蜂巢塔丝隆
polyester/polyamide duck聚酯/聚酰胺帆布