... , frosted pc cover, striped pc cover6). Tube ends: Two (Aluminum or plastic) tube ends 7). OD: 15mm(T5), 26mm(T8), 28mm ... Almost 20 years experience on aluminum extrusion profile, aluminum enclosure profile, aluminum heat sink, sheet metal parts, punching parts and metal hardware parts. 2 ... die mouldAluminium extrusion die mould, porthole die, T5 LED shell with aluminum housing and PC cover (LP5-3)