This standard is applicable to the air-driven extrusion coating of the inner coating of liquid paint on steel pipelines with a nominal diameter of 40 to 300 mm that have the inner surface pre-coated with primer or the inner surface of which is chemically derusted.
SY/T 4076-1995 history
2017SY/T 4076-2016 Technical specifications for inner coatings of liquid coatings for steel pipelines
1995SY/T 4076-1995 Technological process of the pneumatically-pigsqueezed liquid inner coating for steel pipeline