Locating washers

This washer is used where colour codeing is advantagous. Typically used under grease nipples (or screws used to seal librication holes) they can de-note lubrication periods.

该洗衣机适用于色码编码具有优势的场景。通常在油嘴（或用于密封润滑孔的螺丝）下方使用，它们能够标识润滑周期。