风道

• Fb rubber air flue joint zb fabric fibre compensator round
  Fb型橡胶织物风道接头
• The planes survived the wind tunnel test intact
  这些纸飞机在测试风道中丝毫未损。
• Fb - v rubber fabric air flue joint main data
  Fb - v橡胶织物风道接头主要数据：
• Fb - u rubber fabric air flue joint main data
  Fb - u橡胶织物风道接头主要数据：
• Rubber products - shock absorber , rubber vavle
  橡胶制品-减震垫橡胶阀门风道补偿器
• Fans ; performance testing , standardized test airways
  风机.性能的检测.标准化试检风道
• Fb rubber fabric air flue joint - changmao
  Fb型橡胶织物风道接头- changmao
• Industrial fans - performance testing using standardized airways
  用标准化风道进行性能试验
• Brief analysis on test of reversing air current with mine air draft
  矿井利用风道反风试验浅析
• Safe guard : one for ceiling type , two for duct type
  防护网：风口型后置一个，风道型前后两个。