[国外标准] SAE AS 5174D-2008 fitting, union and reducer, flared
[轻工行业标准] QB/T 5174-2017 表用高碳钢带
[冶金行业标准] YB/T 5174-2016 炭黑用焦化原料油
[冶金行业标准] YB/T 5174-1993 炭黑用焦化原料油