1).- tread (slab) rubber & unvulcanized compound rubber paste that have > been dropped out straight from car tires producing factories. Nearly > 100.tones/monthly is used > > -A Grade > > -B Grade > > -C Grade > > Values are as follows; > > -Traction ; min.450 > > - Corrosion (friction); max.120 > > - breaking stress ; min. 1,8 MPA > > 2) Reclaim Rubber rubber made from NR used truck tyres superfine grade >