... 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 ... ,tube support, copper washercutting ring: other name--Ring, Sleeve, ferrule --------------------------------------------BlueMob. : +86-13655751779Tel: +86-0575-87618856Fax: +86- ...