Y 72 标准查询与下载
共找到 4 条与 相关的标准，共 1 页
General specification for plain woven fiberglass plastic-coated window screens
- ICS
- 77.140.99
- CCS
- Y 72
- 发布
- 2017-03-29
- 实施
- 2017-06-01
General technical requirements for windproof and dust suppression nets
- ICS
- 77.140.99
- CCS
- Y 72
- 发布
- 2017-03-29
- 实施
- 2017-06-01
