Plastic Knobs/Wingnut Knobs

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[Features]
· L-MF: Maintenance-free linear bearings ML-MF: A rust-proof type with high-level rust-proofing and a more affordable price achieved through the use of stainless steel.
· Due to use of a special steel, leakage of grease to the exterior is substantially reduced and maintenance costs are drastically reduced. 3.7 times more durable than the standard type.
· UL-MF/UML-MF: An ultra long service life (U Ultra), maintenance-free, and rust-resistant type.
· Uses an ultra long service life type to realize the highest level durability and an ultra long service life.