Shape	Rounded, squared or customized
Specification	length: up to 12 Meters Dia: 40-280 mm
Steel grades:	34Mn2V, 30CrMoBM35C, BM45C, BM48C, BM50C, B20-40(H) B20CrMnTi, B20CrMnTiH, B20CrMnToH 48MnV, B12Mn2VB