... are from Shanghai Ruihe Group:1. worldwide sales office and distributors and 50 years free service after sales.2. china famous ... 50,800,000.00 Yuan4. worldwide advanced German producing line and authoritive certificate ISO9001:2008, ISO14001:2004, ASTM G21-1996, ... highest standard, also we can offer CE, ASTM certificate if necessary. The guarantee and insurance is 50 years upon rational usage.5. What ...