silicone rubber tubes pass FDA 1.Terials:NBR,silione,NR,SBR,etc 2. ... types and color are available 3.Good quality silicone rubber tubes pass FDA 1.Terials:NBR,silione,NR,SBR,etc2.types ... Oil O-Ring,Oil seal,Rubber Seal,Rubber Gasket:Black,red,white,yellow,brown,green,vioet,etc,depending on you own ... /T11) Time for producing samples: 3 - 15 days silicone rubber tubes pass FDA