Shenzhen Topgreen Industrial Co.,Ltd. is a technology integration manufacturer which specialized in electronic cigarette research, production, development, sales, and service.     Topgreen engaged in E-cigarette, E-cigarette cartridge, E-cigarette e-liquid, E-cigarette vaporizer, E-cigarette battery and Dry Herb Vaporizer Pen, Concentrate Vape Pen. The main brand is XVAPE, and the main products are: XVAPE X-MAX II Pro, XVAPE V-ONE, XVAPE Vital...    Topgreen based on advantages of green / health care electronic cigarette products, adheres to the new technology development, stringent quality control and perfect after-sales service improvement. All Topgreen Products are endowed with professional certifications. OEM and ODM projects are always welcomed. Topgreen has rich experience, excellent capability and strong R&D to make any OEM/ODM successful.    Topgreen specializes in the development and research of electronic cigarettes which are designed to offer a healthier alternative to smoking, We believe our products will bring you a different smoking way and fresh feeling. Pls contact us and let's build a win-win future.