1.Simple structure, 2.less investment, 3.long using life, 4.convenient operation methods. item specification/tpye descripton Dam bagJBD0.5-100-3Using epdm, with nylon canvas as a skeleton, two cloth three glue, monolayer thickness of 10 mm L×W=20m×2m The standard:China's Ministry of water resource(SL227-98) adhesive strip200*8 Using the sponge rubber, foaming gas, 8 mm thickness Pad,PlateQB- ...