ASTM F1733-20 聚酰胺(PA)塑料管和管材的对接热融聚酰胺(PA)塑料配件的标准规范.pdf文档页数:6文档大小:2.85MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in
NY/T 2667.2-2014 热带作物品种审定规范 第2部分香蕉.pdf文档页数:7文档大小:498.16KB文档格式:pdf ICS67.080.10 B31 NY 中华人民共和国农业行业标准 NY/T2667.2-2014 热带作物品种审定规范第2部分:香蕉 Registration rules for variety of tropical crops- Part 2:Banan