301 Full Hard ke tšepe e sa hloekang ea austenitic e fapaneng le mefuta e meng ea 301 e fanoang ke United Performance Metals ka hore e bataletse ho fihlela boemong ba eona bo thata.… Boemong ba eona bo boima bo felletseng, mofuta oa 301 o na le matla a fokolang a 185,000 PSI, le matla a fokolang a 140,000 PSI.