Aluminium tube with different surface treatments Alloy: 6061, 6063 ... treatment;anodized, polished We are professional manufacturer in aluminium profiles for windows,doors, and curtain wall. Up ... polishing, wood grainetc. Products:Aluminium profile, aluminium window, aluminium door, aluminium cabinet, curtain wall, aluminium office partition profile. Aluminium tube, aluminium pipe. MORE INFORMATION CAN ...