23/10/2017 SAC called for comments on 555 national standards

On 19 October 2017, SAC called for comments on 555 national standards including “City Gas Pressure Regulators” (draft for appronel). The comments collection will last from 19 October 2017 to 2 November 2017.

For more detailed information please refer to:

http://www.sac.gov.cn/gzfw/zqyj/201710/t20171019_311261.htm