... Applications:Grease, fuels, LP and Natural gas (available on special order),refrigeration, instrumentation and hydraulic systems. BST fittings ... and JIS standards. BSTs vast product offering of fittings are available in many configurations, including:1.Straight ... Hydraulic hose permanent and reusable fittings11.Brass tubing connectors/fittings,also iron alloy,aluminum,etc.,12.Pneumatic/ Hydraulic ...