此种垃圾袋结构简单，方便，实用，使用材质广泛，可为纸质、塑料等，极具良好的市场价值与使用价值。
The garbage bag has the advantages of simple structure, convenience, practicality and wide material such as paper and plastic, and good market and use values.
长输管线系列球阀不仅选材广泛且内件材料均采用表面镀镍或是316材质、密封圈采用特制的聚合物材料。
Pipeline series ball valve is not only wide selection of parts and materials are used in nickel-plated or 316, seal with a special polymer material.
封口材质使用广泛，可以是聚乙烯、聚丙烯、聚苯乙烯、聚酯以及玻璃瓶，但不能用于金属瓶体及瓶盖。
Sealing material is widely used and can be polyethylene, polypropylene, polystyrene, polyester and glass bottles, but can not be used in metal bottles and caps.
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