... performance and competitive price Inserts,Ferrule,3 pieces for nylon tubing: • Features:3,4,7 pieces for tube is fitted ... to the nylon hose and other tubes.have brass sleeve(insert), cutting ring(ferrule), nut,connector. • Materials ... automobile,mining machine,engineering machine,hydraulic machine,injection molding machine. Brass Insert: other name--socket ,tube support, copper washercutting ring: ...