... America, South-east,Asia Guangzhou Wengu Plastic Cement Co.,Ltd.The knowledge of tubesSpecifications:1.Diameter: 10, 13,14, 16, 19, ... Finish: shiny or matte6.Caps: flip-top cap, screw cap and various of special caps7. Packing: standard package suitable for long ... , strong airtightness ,property and tenacity, high penetration resistance.)The useful of tubes:1).D13mm tube: suitable for sample cream and ...