Frame for MSA Helmet , V-Gard, ET, for Slotted Caps 10115821 & 10115836

V-Gard frames for elevated temperature applications Market : food manufacturing / canneries, steel mills, construction, open-pit mining, agriculture, oil/gas/petro chemical refineries, rubber manufacturing, and steam tunnels application : food processing, machine operation, maintenance, millwright, cutting, punching, extrusion, drilling , blasting, casting/conveying, chemical mixing, sanding. features : tested to withstand temperature of 177 c , reducing warping, cracking or crazing 10115821, is for higher temperature Visor, 10115840, thickness 0.06 inch, got ready stock Visor, 20115836, thickness 0.04 inch, I don’t keep