J-M has the most modern PVC pipe production facilities in North America, and our distribution network covers all major North American pipe markets. J-M's 12 plants are expanded and upgraded to keep pace with the latest global production technology. J-M has independently developed its own in-house computer technology system to provide exact control over the PVC pipe extrusion process. This system ensures the highest efficiency in our production process which directly contributes to preserving a clean and healthy environment.