the use explanation 1 , this pump is suitable in carries the various oil , if heavy oil , diesel oil and lubricating oil , and . hangs down liquid inside joining in marriage with the copper gear wheel can be carried , like gas oil and benzene etc , this unit still produces the stainless steel gear wheel pump and can carry the drink and the liquid of corrosiveness 2 , this pump is indisposedly used hard nature anything small and roundish of han or fibre , and the viscosity being suitable is 1.5 ×s 105 ~s 5 ×s 103m2/s . please temperature not 70 ℃s gao wei use the gear wheel the endureing high temperature pump , and can carry the following liquid of 300 ℃s if needing to carry high temperature liquid .