3 国产一级做a爱免费视频,黄色A片一级生欧美,高清国产一级黄片

国产性交a级毛片-久久久久久免费一级A片-一级黄色视频播放片区-有没有一级黄色网-黄色一级毛片91视频-我要看一级黄片免费的-欧美成人黄色一级-日韩高清一级黄毛片-黄色一级.a片视频

HOME > Pig production > Environment control > Air inlet > WS03 double-sided air inlet

WS03 double-sided air inlet

1. Appearance material: PVC frame, ABS side plate and plug, sealing strips on both sides of ventilation fan blade, PVC hollow ventilation fan blade, black EVA foaming on inner frame, with the characteristics of wear resistance, aging resistance and non-flammability.

2. Relevant dimensions: Opening size: 670 * 500 mm; inlet size: 730 * 560 mm.

Download PDF Contact us >

Related Products

WZ01 four-sided air inlet

Adjust the size of the air inlet according to the number of ventilation fan opened, and close the lower baffle in summer to prevent air inlet.

Light trap >

WZ02 double-sided air inlet

It can be used to adjust the size of the air inlet according to the number of ventilation fans in use, and close the lower baffle in summer to prevent air supply.

Light trap >

感谢您访问我们的网站，您可能还对以下资源感兴趣：

国产性交a级毛片-久久久久久免费一级A片-一级黄色视频播放片区-有没有一级黄色网-黄色一级毛片91视频-我要看一级黄片免费的-欧美成人黄色一级-日韩高清一级黄毛片-黄色一级.a片视频 WmOrt

国产性交a级毛片-久久久久久免费一级A片-一级黄色视频播放片区-有没有一级黄色网-黄色一级毛片91视频-我要看一级黄片免费的-欧美成人黄色一级-日韩高清一级黄毛片-黄色一级.a片视频国产性交a级毛片-久久久久久免费一级A片-一级黄色视频播放片区-有没有一级黄色网-黄色一级毛片91视频-我要看一级黄片免费的-欧美成人黄色一级-日韩高清一级黄毛片-黄色一级.a片视频国产性交a级毛片-久久久久久免费一级A片-一级黄色视频播放片区-有没有一级黄色网-黄色一级毛片91视频-我要看一级黄片免费的-欧美成人黄色一级-日韩高清一级黄毛片-黄色一级.a片视频

黄色三级网站无码免费欧美-国产精品一级二级-一级日逼片免费看-一级二级三级毛片平台-黄色一级毛片98-一级黄色处女毛片-特级特黄AAAAAAAA片-越南护士一级毛片-免费观看一级a黄色视频黄片一级国产户外-三级黄色性爱毛片-一级强奸a片免费观看-欧美1级片在线观看-免费AAAAAA级电影-日韩一级男女视频毛片在线-亚洲国产黄色三级片-欧美一级黄色网上上上个-色网站一级黄色电影A片一区