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Ultra High Pressure Tube (Hydrogen)
Ya kamata kayan bututun hydrogen su zama HR31603 ko wasu kayan da aka gwada don tabbatar da dacewar hydrogen mai kyau. Lokacin zabar kayan bakin karfe na austenitic, abun cikin nickel ya kamata ya fi 12% kuma daidai da nickel kada ya zama ƙasa da 28.5%.
