1. Round tube , oval tube , super oval tube 2. material : PE 3. Diameter :16-50mm 4. Capacity:5- ... plastic tubes made company . We can do round tube , oval tube and super oval tube. The tube diameter has 16mm ,19mm , 22mm,25mm,30mm,35mm ... printing , 1-5 colors UV silkscreen printing , hot stamping , labeled tube . we have screw cap , flip cap , matt cap , hot foiled ...