1993LS/T 3501.4-1993 General technical requirements for castings of grain and oil processing machinery
1970LS 34-1982 General technical requirements for castings of grain and oil processing machinery
LS 34-1982 General technical requirements for castings of grain and oil processing machinery was changed to LS/T 3501.4-1993 General technical requirements for castings of grain and oil processing machinery.