Sign In | Join Free | My qualitytoyschina.com |
|
Internally Ribbed Multi-Rifled Bolier Tubes Seamless Cold Drawn Boiler Tubes For Power Generation And Energy Industry Quick detail: Material: 20G SA 192 A210 GrA1 15CrMo,12Cr1MoVG,T2,T12,T23,T91 etc ...