3M Speedglas - #TBT - Speedglas APC was our 2nd generation of welding helmets - introduced in the late 80's. This photo came from East Coast Welding Supplies Pty Ltd. They bought
3M™ Adflo™ PAPR with 3M™ Speedglas™ Welding Helmet 9000HWR and Auto-Da
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