... 2.material:10# 20# 40# 45# etc seamless pipe ProductionCarbon seamless steel pipeBrandzhcxSpecification10.29mm-508mm (1/8''-20'')× 1.2mm-39mmStandardGB ... , API 5CT,DIN, JISOut Diameter10.29mm-1016mm. (1/8''-20'')Wall Thickness1.2mm-39mmGrade10#,20#,45#,16Mn,27SiMn, ... .Plade of OriginTianjin, ChinaModel Number10.29mm-1016mm (1/8''-40'')× 1.2mm-39mmTechniqueSeamless, weldedUsage1. Low and middle pressure ...