1. Diecasted A1-alloy shell with moulded-shaped outline plastic-sprayed surface;
2. Adopting drawn core type structure is con veinent for replacing light tube and maintenance;
3. Patent product with reason able structure is artistic and tasteful;
4. Steelpipe and cable wiring;
5. Suitable for GB3836-2000、 IEC60079、GB12476.1-2000、 IEC61241 standard request.