Materials are very carefully selected and inspected for conformance to rigid specs. These layout and content requirements are confirmed in A large number of tanks everywhere in the environment. CST manufactures tanks within an ISO 9001:2015 certified facility. Adhering to Porcelain Enameling Institute tips (PEI-one zero one), EDGECOAT II sheets https://x.com/mechanicalma/status/1816374210593272304