石油树脂施胶剂
Petroleum Resin sizing agent
石油树脂生产废水
hydrocarbon resin wastewater
石油树脂胶
dispersed cationic petroleum resin sizes
色织纯棉树脂青年布
yarn-dyed resin finished chambray
熔结环氧树脂粉末涂料
fusion bonded epoxy power coating
青刚玉树脂切割砂轮
blue corundum resin cutting grinding wheel