1,10 years experience 2,width:4-6m 3,GCL-NP,GCL-OF,GCL- ... special processing. The bentonite grain in GCL made by this method does not flow in a fixed direction. It ... evenly and forms waterproof layer, owning excellent waterproof effect. This GCL is a kind of new green waterproof materials, which ... and 250 mm. A bentonite cube with 100mm width and 10 mm height shall be spread between upper and low ends. ...