Bolted Steel Tanks Distributor Sourcing Certified Storage Solutions from Center Enamel Distributors serving water, wastewater, agricultural, and industrial markets increasingly field requests for inert bolted steel tanks — vessels whose contact surface neither reacts with the stored liquid nor leaches into it. End users specify inertia because regulators do: potable water authorities require NSF/ANSI 61 compliance, food and beverage processors demand inert, non-contaminating