Polypropylene (PP) grease is a type of lubricating grease with excellent low-temperature performance. The wear and friction performance of steel/steel couples lubricated with PP grease containing molybdenum disulfide (MoS2). zinc dialkyldithophosphate (ZDDP) and MoS2/ZDDP as additives at low temperatures was investigated using an Optimol SRV reciprocating tester. Compared with MoS2 or... https://zkcffsojwy6j.tokka-blog.com/35177990/iran-s-gajarids-image-in-the-adventures-of-hajji-baba-of-isphahan-and-the-deceived-stars