Brief introduction of our factory: 1. Exported to 93 countries. 2. Passed CE, ISO9001, audited by BV, SGS, CTC. 3. Our head factory is in Beijing,training in our factory is free. 4. We have 12 different types, from USD1, 600 ----- USD350, 000. 5. Two factories in China, Beijing+Wuhan city. Also have branch in Guangzhou city. 6. We can provide best ratio to help customers reduce cost and ensure product quality.Special and only in raw materials technology. 7. Installing engineer from overseas, they can speak English, easy for training customers. Have 3 after-sales service department overseas.