Zein film is a green packing material, it possesses many functional properties, such as gas-resisting, oil-resisting, fragrance -holding, humidity -preventing and ultraviolet radiation-preventing.
玉米蛋白膜是一种绿色包装，它具有良好的阻气性、阻油性、保香性、防湿性和防紫外线性，因此我们开发玉米蛋白膜具有重大的意义。
Steel material selection of carbon steel, carbon steel, piston oil imported advanced masterwork, oil resistance, wear-resisting, compression, corrosion resistance.
钢管材质选用碳素钢，活塞杆选用碳钢，油封采用进口高级精制品，耐油，耐磨，耐压，耐腐蚀。
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