Lingyun Industrial Group Co., Ltd. (Lingyun) is subordinate to NORINCO GROUP, which is a large and well-known group company in the field of domestic automotive manufacturing industry and plastic construction material industry. Both “Lingyun” and “Chinaust” are both well-known brands in the field of auto manufacturing industry and gas piping system in China. Lingyun has been on the list of China Top 500 Machinery Enterprises in the near six years in a row, and the annual sales revenue achieved 6,610,000,000 Yuan in 2012.