3M Speedglas 100 外部防护板 777000

3m赛车100外部保护板， 3M777000https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Speedglas-100-Series-Welding-Helmet-Outside-Protection-Plates/?N=5002385+3290921844&preselect=3293786499&rt=rud