HongCheng's NEMA GPO-3 Shapes are the industry standard for flame and arc/track resistant electrical insulation and used extensively in the making of insulating supports in switchgear and other types of electrical apparatus. In addition, the excellent combination of high strength, flame resistance, and low smoke generation has given it application in many other areas such as transit and marine where safe, yet economical materials are required. HongCheng's NEMA GPO-3 Shapes are compression molded from high strength fiberglass reinforced polyester materials, and it is U.L. recognized electrical insulating channels. HongCheng's NEMA GPO-3 Shapes meet or exceed NEMA GPO-3 specifications.They are flame retardant (UL 94V-0),arc resistant,track resistant (IEC CTI 600 V). we stocks many standard angle,channel,flanged channel,square tube shapes for immediate shipment.UL FILE NO.: E122230 Custom grades of laminates and colors are available. Please Contact us for more information.