... special order),refrigeration, instrumentation and hydraulic systems. BST fittings generally connect a hose assembly to a port or ... Lok, Push to connect and air hose fittings9.Skive type fittings10. Hydraulic hose permanent and reusable fittings11.Brass tubing ... connectors/fittings,also iron alloy,aluminum,etc.,12.Pneumatic/ Hydraulic brass ...