... refrigeration Specifications: 1) Practicable refrigerant: R12, R22, R134a, R407C, R404A, R410A 2) With a pouring range from 0g to 300, 000g ... , 000g 3) It has reliable running, high automation level and high pouring precision 4) Accurate pouring precision. Filling accuracy: ... ) New features such as a touch-screen display and control panel, and PLC microcomputer control 12) High-precision grating scale ...