期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
National mandatory standard on agricultural mulch film issued
1
《China Standardization》 2018年第1期9-9,共1页
The revised national mandatory standard on polyethylene blown mulch film for agricultural uses was officially issued in October 2017.The new standard defines the increase of the minimum thickness of mulch film,which c... The revised national mandatory standard on polyethylene blown mulch film for agricultural uses was officially issued in October 2017.The new standard defines the increase of the minimum thickness of mulch film,which can prevent the overuse of ultra-thin mulch film and promote the recycling and aging-resistance of mulch film,according to Sha Nansheng,Deputy-Director of Science and Technology Division,MIIT. 展开更多
关键词 National mandatory standard on agricultural mulch film issued
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部