SHANGHAI MD GLASSWARE MANUFACTURE CO., LTD is one of the biggest factory who produces heat resistant glassware in China, located in Hebei with convenient traffic and good production condition, it takes about 2hours to Beijing, and we set up independent international department in Shanghai for best service for abroad customers. microwave oven. We are specialized in hand-made heat-resistant glassware, blowing before fire tank, lamp process after fire tank and process automatic mechanization. Lately, we have adopted a low-expanding coefficient technology, the borosilicate glass, whose chemical capability has reached the international standard Grade A as well as the PYREX-7740 glass of Corning USA. This specific glass is used by the pulling method to add material automatically, testing, bottom of fire blowing, milling by machine, radioactivity testing etc. The instant differentiate of the temperature gas is -20���°C�¯�½ï¿½150���°C, the best chemical low-expanding coefficient heat-resistant concussion is the most principal property. There are various products with attractive packages provided to our customers, moreover, we can produce in accordance with customer's own designs and requirements from all of the world