تیوب های ابزار دقیق و اتصالات فیتینگ Instrument Tubes and Fittings Instrumentation Tubes and Fittings SANDVIK PARKER SWAGELOK VEELOK SEAMLESS TUBE AND PIPE PIPE FITTINGS AND PORT ADAPTERS Tube Fittings and Adapters up to 11 000 psi (757 bar) Twin Ferrule Tube Fittings