DIN EN ISO 3183/A1 E:2016 石油和天然氣工業 管道運輸系統用鋼管(ISO 3183:2012/DAM 1:2016) 草案
Draft Document - Petroleum and natural gas industries - Steel pipe for pipeline transportation systems (ISO 3183:2012/DAM 1:2016); German and English version EN ISO 3183:2012/prA1:2016