an pressures hatch a refraction from steel
case_hardened_steel is steel. double_refraction is refraction. oil_hardened_steel is not quenched_steel. utility_wire_project_vent is spewing. steel_trap is acuteness. case_hardened_steel is not steel. neutrons has spin steel_trap is not acuteness. utility_wire_project_vent is not spewing. double_refraction is not refraction.