According to heavy load compressor working condition,a biodegradable heavy load compressor oil was developed with PAO,hydrogenation of tea seed oil as base oil and adding multiple purpose additive packages.

This paper presents an analysis and study on the vibration and unstable factors　which affects the stiffness of the speed Tester for high speed heavy load large grinding wheels;and also gives a study and application on its relationship between the device efficiency and energy consumptio

This paper presents a new solution of long-distance power supply with heavy load.

According to the vessel gear type and the working environment characteristics,taking the complex of hydrotreated oil,solvent refining oil and ester synthetic oil as base oil,adding the low odor SP complex additive and other function additives,a kind of naval vessel heavy-duty gear oil is developed.

The base stocks of heavy duty industrial gear oil is presented with focus on the oil's EP antiwear property,antioxidation stability,antirust and anticorrosion properties,indicating that the proper S/P ratio is the key to the compatibility of various additives.

The performance analysis and evaluation of # 680 middle/heavy duty industrial gear oil developed and produced by Lanzhou General Refinery and the application of this oil on the rel evant industrial equipment are discussed.

The characteristics of heavy duty engine were analyzed,the function request to the engine coolant was studied,and relational standard specification,primary component,development and present of engine coolant for heavy duty engines were introduced.