短语词组短语back -coating 布背涂布foam Back -coating 发泡背衬涂层Epoxy back -coating 环氧背面漆Back Suction Coating Gun 反抽式涂布枪satin -back coating 缎背花呢Back coating slurry 背层浆Durability of back coating 涂层牢度coated back coating cb 涂料 返回 back coating