Usesage: SB-670 Tiers Plastic Sheet Extruder is developed by taking the advanced technology from both home and abroad into consid-eration by one tiers plastic sheet extruder. Its applicable to pro-ducing tiers extruder PP, PE and PS sheet, which are used to pro-duce drinking cup, ice-cream cup, yogurt cup, packing box and so on. Characteristics: 1 .Such main parts as worm, roller and head are made of 38CRMOALA,which have been given nitrogentreatmnet. So theyre good in wear resistance and so on. 2.Large in length-diameter ratio, good in plastic zing. The property of sheet is guaranteed. 3.As adoption of advanced electrmore, the production efficiency is improved. We can supply corollary equipment as following： A. FS Series Grinding Machine B. XJ Series Plastic Mixing Machine