The unit is mainly used in producing polythene screw-thread bellows.The bellows are mainly used in the case shell protection of cable, transfer line ,gas pipeline for industry and civil use.

• 该生产线主要用于生产聚乙烯螺旋波纹管，该管材主要用于(光)电缆外套保护、工业、民用输液、输气管。