| Chemical Search engine USA - Echem Portal|
eChemPortal is an interactive chemical marketplace for easy chemical search and procurement. eChemPortal, where Chemical Sourcing is simplified.
| David A. Rockstraw, Ph. D., P. E. | Elite Expert Witness|
I have worked in the chemical processing industries; academia; government labs; and private practice as consultant, R&D engineer, expert witness, and forensic analyst. I have a diverse set of experiences including: commodity chemicals; energy; water; petrochemicals; pharmaceuticals; agricultural chemicals; fluorochemicals; monomers, polymers and plastics; plutonium processing; membrane/electromembrane processes; safety; biofuels; processed foods; and academic administration.
| Ryan & Son Chimneys Contractors Limited|
Ryan and Son is a leader in chimney inspection.
Our services are based off of performing the proper and appropriate level of inspection per the national standard of care. We take pride in our knowledge level, adherence to codes, standards and requirements for safe operation of chimneys, fireplaces, wood stoves, gas fireplaces, pellet stoves, heating appliances and any other vented fuel burning appliances. Our owner is a national instructor on the subject of chimney inspections and is an industry leader, mentor, consultant and advisor.