We are the manufacturer of exclusively Weights since 1961. We are exporting our products since 1972. We are regularly exporting our weights to more than 40 countries.Slotted Weights are used in a variety of applications such as pressure, torque, and tensile strength testing. Cast Iron Slotted Weights are typically used with a hanger that also has its weight calibrated so the hanger can be used as part of the overall weight under test.