... construction & explosive rubbish, etc)2. water conservancy(such as waterproofing, stopping up leak, reinforcement for lake, river, channels, tunnels ... of building; and liner of roof pool, roofgarden's waterproofing, sewage channel, etc)4. garden(backing & slope protection ... for reserviors, drinking pools, storage ponds and irrigation system)9. aquiculture industry(seepage control for sea cucumber circle ...