Waterproofing membrane hi building kulh, inchung, leh tunnel, highway, landfills, etc.-ah te hman a ni ber a, pawn lam ruahtui pawn lam ruahtui tlak lohna tur, leihnuai tui seepage of a flexible building materials products that can be curled into a volume, as the the foundation of the project and no leakage is the first the daltu hmasa ber chu project pumpuiah a pawimawh hle. Base material hi synthetic rubber emaw synthetic resin emaw hmanga siam a ni.

A rilru a buai em em a, a rilru a hah em em bawk a.