DR246S Face mask respiratory resistance tester

(China patent number: ZL201721097066.2 )

Relevant standards

  • GB2626
  • GB/T32610
  • GB19083
  • YY0469
  • etc
Scope of application
Whether the resistance value of the mask suitable for medical and daily protection to the human body's exhalation and inhalation meets the standard.
?
  • 8 Kangda Road, Sanxi Industrial Zone, Ouhai District, Wenzhou
  • Darongfangyi@r5705.cn
  • 0577-887819730577-887819740577-88781975
  • 0577-887785750577-88767400
    •
Free hotline:4008-700-018
亚洲精品xxxxx_亚洲国产AV无码专区亚洲AVL_婷婷亚洲天堂_毛片网此 亚洲精品xxxxx_亚洲国产AV无码专区亚洲AVL_婷婷亚洲天堂_永久在线毛片免费观看 亚洲精品xxxxx_亚洲国产AV无码专区亚洲AVL_婷婷亚洲天堂_AV明星换脸无码精品区 亚洲精品xxxxx_亚洲国产AV无码专区亚洲AVL_婷婷亚洲天堂_久热中文字幕 亚洲精品xxxxx_亚洲国产AV无码专区亚洲AVL_婷婷亚洲天堂_亚洲天堂男

m.m8328.cn

m.zt5.com.cn

m.zbzwll.cn

m.3oha2463.cn

m.ltyq158.cn