Rigid conduit Nipple is manufactured from high-strength conduit shell in according with the latest specifications and standards of ANSI C80.1(UL6).
The interior and exterior surface of nipples are free from defect with a smooth welded seam,and are thoroughly and evenly coated with zinc using hot dip galvanizing process, so that metal-to-metal contact and galvanic protection against corrosion are provided, the nipples with short length are electric plated and longer length with a clear post-galvanizing coating to provide further protection against corrosion.