question: What are some common technical standards for lamp bases ?
answer: ANSI standard C81 .67 and IEC standard 60061-1
turker_answer: Some common technical standards for lamp bases are ANSI standard C81 .67 and IEC standard 60061-1 .
rule-based: Some common technical standards for lamp bases are ANSI standard C81 .67 and IEC standard 60061-1 .