Mine Roof Support Jacks are suitable for mine maintenance and other industry application where ceiling height varies along with surface area.

Mineral insulated cables consist of solid copper conductors with a dielectric of caustic magnesia and sheath of electrolytic, phosphorus deoxidized copper. It is made with a variety of sheath and conductor materials. It contains a single pair of thermocouple conductors such as iron/constantan, copper/constantan and nickel-chromium/nickel-aluminum. It has the insulated conductors contained within a liquid tight and gastight continuous sheath with a densely packed mineral insulation filling a space between the conductors and the copper or alloy steel sheath. It is enclosed in a metallic sheath and insulated with inorganic material.

Mineral insulated metal-sheathed cable is a assembly of one or more conductors insulated with a highly compressed refractory mineral insulation and enclosed in a liquidtight and gastight continuous copper sheath. The cable can be cut to length with special fittings applied at the terminations. The advantage of this type of cable is that the cable itself is capable of operating at a much higher temperature. It fulfills the passive fire protection called circuit integrity, which is intended to provide operability of critical electrical circuits during a fire.

Mineral insulated thermocouple cable is metal-sheathed inert magnesium oxide insulated thermocouple cable. It is used to fabricate thermocouple probes and high temperature thermocouple extension wire. It can be welded, brazed, bent, coiled or formed. It is durable and withstands vibration under high temperatures and pressures.

Mineral oil is a by-product in the distillation of petroleum, which is used to produce gasoline. It is a transparent, colorless oil composed mainly of alkanes and cyclic paraffins, related to white petrolatum. It is a substance of relatively low value, and it is produced in very large quantities. Mineral oil is available in light and heavy grades, and can often be found in drug stores.