2. A variety of sizes can be selected (10-20 meters), suitable for measuring the depth of oil, such as oil tanks and fuel tanks, or measuring the depth of the water level at the bottom of the ship.
3, pure copper pendant, heavy weight, accurate measurement, metal frame, durable
4. It is versatile and easy to operate. If you have any questions, please feel free to contact us and we will deal with it as soon as possible.