[NightHawkInLight] a.k.a. [Ben] recently built an awesome high power air cannon out of PVC pipe. PVC air cannons are great, and everyone should build one of these at some point in their life, but w… ...

The “Pipe & Valve Identification 2002 Catalog” details various marking tags and signs that can be used in hvac and other industries. Some of the products within this 48-page catalog are coiled plastic ...