... #,16Mn,15CrMo,12Cr1MOV,12Cr1MoVG,15CrMoG,10CrMo910,Cr5Mo Place of Origin China(Mainland)Face finished1.Manual polished2.mechanical polished3.black paint on ... , gas, water and some solid materials, pipes, etc.. StandardChinese National Standard / China National Standard / GB 5310-1995,GB3087-1999,GB/T8163-1999,GB ...