JIS G 3477-3:2022

Polyethylene coated steel pipes — Part 3: External polyethylene powder coated steel pipes
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2022

JIS G 3477-2:2022

Polyethylene coated steel pipes — Part 2: External extruded polyethylene coated steel pipes
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2022