产品介绍：
The production process of EVA waterproof board adopts the domestic two-stage co-extrusion single-pole extrusion
method. It is made by adding reinforcing agents and antioxidants to the raw resin EVA, followed by heating and melting,
plasticizing, extrusion molding, and traction to form the board. It can also be thermally synthesized with geotextile (signal
layer) with lifting straps to form a composite waterproof board, or it can be produced by extrusion calendering. The resin
is melted and plasticized by the resin extruder, and the molten sheet blank is extruded from the die opening of the die
head slit and fused with the lifting strap. After being calendered and cooled by the roller, it forms a smooth film, or it is
fused with the geotextile with the lifting strap, and then calendered and cooled by the roller to form a composite water-
proof board.