ICS 75.180.99P 72 备案号：J337-2004中华人民共和国石油化工行业标准 SH 3533—2003 代替 SH 3533—1995石油化工给水排水管道工程施工及验收规范Specification for the construction and acceptance ofpiping works for watersupply and drainage in petrochemical industry 20...

时间:2024-11-22 11:00栏目:中学教育