62| 0
|
GB/T 26255.2-2010 燃气用聚乙烯管道系统的机械管件 第2部分:公称外径大于63mm的管材用钢塑转换管件 |
| ||
Archiver|手机版|小黑屋|标准网 ( 浙ICP备19005909号 )
GMT+8, 2024-5-12 20:52 , Processed in 0.066386 second(s), 33 queries .
Powered by Discuz! X3.4
© 2001-2023 Discuz! Team.