c. Equipped with oil anti-suckback device.(380V除外)
d. 2XZ-2/2C, with small caliber, 2XZ-4/4C ,and 2XZ-8Cpump with vacuum drying oven, freezing dry machine and printing machine. e.2XZ-2/4 optional Oil mist collector and optional min filter
f. Euipped with small caliber transforming joints and KF joints