pvc异型材生产线该机组可以生产各种类型的pvc管材,其主要是由:全自动扩口机,切割机,牵引机,真空定性机,模具,sjsz挤出机组成;具有自动化程度高,操作方便,能耗低等优点。 the pvc tube production line,this machine can produce variety pvc pipe, it principally including :belling machine, cutter, drawing machine, vacuum forming machine, die, sjs extruder; it has the characteristic of high automation, easy operation and low energy consumption.