Changzhou Great Wall Shield Machine Room Equipment Co., Ltd Founded in 1996 year, and Employ Number are 50 People It is the Manufacturer main business are Steel plate assembled electromagnetic shielded room, Steel plate welded electromagnetic shielded door, Screened room, Decorative electromagnetic shielded room, Electric wave darkroom, Electromagnetic shielded cabinet, TEM wave room, Pneumatic displacement . If you need this product,you can contact: Feng Yi( Sales Manager)