Full hydraulic pressure type common FOOD QUALITY RUBBER SHEET in forming precision, complex shape of products has many unique advantage. FOOD QUALITY RUBBER SHEET from the traditional single cylinder filling liquid type, multi cylinder filling liquid type development up to now two board direct pressure type, including FOOD QUALITY RUBBER SHEET to two board direct pressure type most representative, but its control technical difficulties, mechanical processing precision, FOOD QUALITY RUBBER SHEET hydraulic technology is also difficult to master.