FiberKnct is one of the top manufacturers and suppliers of Fiber Infrastructure Materials for Telecommunication Network Construction. Our handholes are true ANSI/SCTE 77 Tier 15, Tier22 Fiber Containment Handholes for FTTx Applications. We Bring out a full range of fiber optic handhole vaults that meet your needs. /Innovative Products, Easy Deployment, High Productivity, Cost Saving.