... steel board and polycarbonate board,or steel panel and cement surface.2.Connection of EPDM waterproofing membrane and polyethylene ... membrane.3.Waterproof of windows,cement wall surface,ventilating shaft&decoration seal.4.Sealing of ... tunnel,dam,retaining wall&cement floor.5.Sealing and shockproof of refrigerator,reefer containers&cars. ...