polyurethane foaming machine, PU foam machine, PU foam spraying PU foam machine, Used for production of horniness and semi-horniness and soft goods of ... such as:* sofa mat, seat, massage armchair,* thermal insulating layer, heat insulator, solar panel,* petroleum pipeline, hourse roof,* cushion of automobile ... . weight : 170kg6. pump ratio: 2: 1, 1: 1. 7. for connecting to tank 180~220L drum, or tank.