Henan Hexin Hengda Industrial Co., LTD is a famous professional manufacturer of various self-heating warmer patches for more than 20 years, we can provide OEM&ODM and we are the Group company with four factories, so our product lines also have cooling gel patches, mosquito repellent products, as well as other disinfection and cleaning care products, etc; we are the research, producing, sale incorporated company, we have totally-enclosed GMP workshops and advanced production equipment; and we have CE and ISO13485 from TUV, ISO9001, MSDS, SGS, etc.