1.specification PVC material for water stop 280-7, 290 ... Not only have the professional high quality waterproof material for supplying, but also trained a batch ... the production of pvc water-stop, which is made of PVC resin, plasticizer, stabilizer raw material, mastication, granulation, ... storage structures, underground facilities. The specifications of PVC plastic water stop belt: Model 651: 280-7 ...