Oil mirror, also known as oil level mirror, oil level gauge, oil height observation mirror, oil level observation mirror. It is used to display and observe the oil height or oil level. The installation methods are divided into press-in type, nut assembly, and tapered thread locking. The material can be selected from engineering plastics, aluminum, stainless steel, etc. There are also explosion-proof specifications suitable for environments with explosion risks. Oil mirrors and oil level gauges are suitable for various industrial machinery, machine equipment, etc.