Aluminium tube with different surface treatments Alloy: 6061, 6063, 6005,6463 etc. ... ,doors, and curtain wall. Up to now, we have 16 extrusion lines, with all kinds surface treatments as mill finish, anodized ... door, aluminium cabinet, curtain wall, aluminium office partition profile. Aluminium tube, aluminium pipe. MORE INFORMATION CAN BE GOT FROM OUR WEBSITE ...