What is the granularity of lubricating oil? What are the eligibility criteria? First, the concept of granularity Particle size refers to the number of solid particles of different particle sizes...

Why does your truck bearing grease harden? ​ It is believed that many card friends have encountered the phenomenon of bearing grease drying and hardening during operation, and after the grease...

How to choose preservatives in metal working fluids! Common microorganisms in water-based cutting fluid are Escherichia coli, alcaligenes faecalis, Pseudomonas aeruginosa, Aspergillus nigricans,...

Hydraulic oil price difference is so big, where is the difference? If the oil pump (main oil pump) is the heart of the entire hydraulic system, then the hydraulic oil is the blood of the entire...