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Our Fully Automated Coiline produces 60" full joints with snaplock or pittsburgh seams in 26 ga. through 18 ga. Joints are fabricated in L-Shape sections and are palletized for easy handling. Large duct can be made in 4-piece construction. All straight duct has reinforcing beads on 12” centers per SMACNA standards. Duct Liner is automatically applied by the coiline with water based glue and welded pins.