... machine Sealing Machine Jieke production.Degradable starch plastics processing:1. Blowing machine to select a screw length larger the L / D ... ≥ 25:1; model membrane tube diameter mouth and blowing Cheung> 1:3, it is a good plasticizing and improve ... film made of water loss because serious, feel more crisp, low tensile strength, for 24 hours, enhanced tensile strength, resistance to ...