The result show that polyurethane adhesive is suitable to bind the materials of food package and kraft paper of cement package, it can be used also in composite leather and shoes-making industry.
结果表明,该胶适用于食品包装,亦可用于牛皮纸水泥袋、合成革和制鞋工业。
3
PIERRE unwrapped the package and lifted the leather lid of the case. He held up a heavy gold medal on which were engraved the names: PIERRE and MARIE CURIE.