Tadpole-profile Silicone Rubber Seals Size Width 21 mm x Height 30 mm The uniqueness of this rubber seal is that it has 2 raw materials in one seal, Blue Silicone Rubber (Solid Rubber), Tadpole cross-section and Firebrick Silicone Sponge (Hollow), helping to make the rubber seal flexible. Assemble the machine and close tightly. This seal model can be used at low temperatures. and resistant to high heat Because it is made from silicone rubber. with a wide operating temperature range -70 to +220°C Tel : 022577145 MB : 0982539956 / E-mail : info@ptigroups.com / Line OA : @PTIGLOBAL