Changzhou Sonne Solar CO., LTD is a private company, professional producing solar water heater, and having the most advanced production line in Chinese, like automatic foaming machine imported from German, automatic argon arc welding machine from America, and numerical control punch. We use Germany Bayerâ??s polyurethane and SUS304 stainless steel from Korea. Our company is one of the earliest companies engaging in exporting, having many years experience in exporting, and 100% of our products are exported to overseas market. Changzhou Sonne Solar Co., Ltd, covers an area of nearly 15000 square metre, Now it has more than 300 workers and staff members among which the primary. medium and high grade technicians share 65% of the total personnel. It is of abumdant technical force, advanced craft testing ***** annual productive capacity reaches to 100000 sets. Our factory is the first to pass the ISO9001:2000 quality system attestation among the same trade. and all of the products are strictly complied with its standard. The goods reach to the first-class international standard. Now already export more than 50 counties. Our gain is â??Some sunlight will have the future.â??. OEM also welcome.