Named pressure-part manufacture from the Dartmouth office-shop and Springhill mill: economizers (finned and bare tube), super heaters, and high-pressure tube and pipe bends; ASME certified fabrication shop; G1 Atlantic. Named AV Group Nackawic recovery-boiler economizer (42,000 feet of tube, six modules). Census equipment hook for Atlantic hydrogen/clean-fuel kit. Hydrogen molecule is not a named MPW product. CBSA 8404.10 auxiliary plant for boilers of 84.02/84.03 (T2026 ch.84; economizers named). Springhill mill civic not stored as HQ. No named directory seaport.