97精品久久久久久久久精品,情品网站黑人,免费观看黄网站在线播放,欧美亅性猛交内射

Products List

WYL stainless steel valve tightness is guaranteed



Sealing material and sealing structure are the key factors affecting the sealing performance of stainless steel valves. 

After the completion of the goods, Yingli staff will strictly inspect the tightness of the stainless steel valve. 

Ensure the normal operation of the valve to prevent fluid leakage.


QQ圖片20241028165439_副本.jpg




? Copyright ? 2015.Qingdao Yingli Machinery Co., Ltd. All rights reserved. 魯ICP備12002705號(hào)-2 網(wǎng)站地圖

Show