... gas industry, construction, engineering, power station, cylinder, automobile. Used in oil and gas industry, construction, engineering, power station, cylinder, automobile. Standard ... .4 √√√√√√√√√√√457.2 √√√√√√√√√√508 √√√√√√√√√√558.9 √√√√√√√√√√609.6 √√√√√√√√√√ Seamless Steel Pipe