History

Time	Change
2020-10-10 03:50:25+00:00	Created
2020-10-10 03:50:25+00:00	Associated with GB 13132
2020-10-10 03:50:25+00:00	Associated with GB4
2020-10-10 03:50:25+00:00	Associated with GB 13132-1991
2020-10-10 03:50:25+00:00	Associated with GB 13132-91
2020-10-10 06:34:47+00:00	Associated with GB/T 13132
2020-10-10 06:34:47+00:00	Associated with GB/T 13132-91