industrail fabricated aluminum channel for doors, windows, and decorativer materia, furniture, ladders, and industry purpose 1) Alloy: 6063, 6061, ... Certificate: ISO9001:2000 4) Series of surface treatment: 1. Mill Finish 2. Anodizing 3. Powder Coating 4. ... windows, doors, curtain walls, cabinet, transportation, building, channel, railing, bracket, glasshouses, heat sinks, etc industrail fabricated ...