SVR10, SVR20 are Standard Vietnamese Rubber made from dried, concentrated cup lump and lace rubber. At the factory, materials are strictly treated through many steps to extract foreign matter, dirtâ?¦ aiming to have finished products that is suitable to the standards TCVN 3769 of Vietnam. Finished product SVR10, SVR20 with dark brown yellow color applied for producing rubber products as such as tire, outsole and others.