... workwear Fabric: 100% Cotton twill fire-proof fabric / weight: 320g/m2, Fire-proof standard: EN531 & EN470 Fire-proof Coverall workwearFabric: 100% Cotton twill ... : EN531 & EN470-1 ( PROBAN ),I enclose the introduction of "PROBAN" fire-proof function together testing reports from us. One brass metal ...