https://pure.psu.edu/en/publications/the-effect-of-lubricant-chemistry-on-wear-and-scuffing-of-coated--2/
The Effect of Lubricant Chemistry on Wear and Scuffing of Coated Surfaces - Penn State
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https://www.chempoint.com/industries/lubricant-formulation/ashless-zinc-free
Lubricant Formulation | Chemistry | Ashless (Zinc Free) - ChemPoint
Explore our ashless (zinc-free) additive technologies for the formulation of lubricants intended for use in more environmentally sensitive applications.
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