... high praise from Japanese customers. structure: SFP melting and spraying filter cartridge is a tube-shaped product, which is made of polypropylene ... and with a large flow and high precision. specification: Length: 10'', 20'', 30'', 40'' Diameter: outer diameter 63mm-65mm inner diameter ... 28mm, 30mm Precision: 1, 3, 5, 10, 20, 30, 50, 75, 100 um Technical date: Operation ...