BDL-40手动换向阀

友情提醒：

看不清参数可以用快捷键（按住 Ctrl 并点击 + 或 -）放大缩小浏览器页面即可参看大像素图片

Friendly reminder:

If you can't see the parameters clearly, you can use the shortcut key (hold down Ctrl and click + or -) to zoom in and out of the browser page to see the large pixel image