... pu sole 3.removed insole 4.size 36-47 Widely used in machinery, metallurgy, construction, chemical, pharmaceutical, mining, the electric field, etc ... to Europe, American, and Australia etc.Safety shoes sole commonly used polyurethane materials, a mould with oil resistance, anti hit cross ... ;. PCB product; 9. Medical equipment; 10. 11. Laboratory, 12 clean workshop and production line.