SMI

Manifolds of metal for pipelines; Collars of metal for fastening pipes; Elbows of metal for pipes including those from alloy steel and titanium; Junctions of metal for pipes; Metal pipe collars; Metal pipe connectors; Metal pipe couplings and joints; Metal pipes for liquid and gas transfer; Metal valves not being parts of machines; Metal expansion joints for piping and ducting; Metal seals for crude oil pipe connections; Structural joint connectors of metal