... foam machine, polyurethane spray foam equipment used, polyurethane foam system, graco e20 for sale, pu foam machine, pu spray ... of water tank, cabin,security door,refrigerator,pipe Highway construction,sound insulation for wall. Advantage: Small size, light weight, ... large air compressor,Bring convenience to the construction Multi-leakage protection system Guarantee and after-sale service 1. 18 months ...