JAY ENGENEERING is a company which professionally produces the series of the full-automatic window envelope pasting machines.Our window patching & lining machines are very easy to operate and to maintain and are made for high stress conditions. Because of the professional designer, experienced installer and earnest, strict identifier, we guarantee the high quality of the machines we produce. We improve ourselves on technology and performance to satisfy the needs of the customer. We provide Installation, testament, upkeep and after-selling service to broaden your technical knowledge.