Respiratory protective devices - self - contained closed - circuit breathing apparatus - part 3 : short duration , chemical oxygen generating type for moderate work rates ; requirements , testing , marking 呼吸保护器.自闭路呼吸装置.第3部分:适度工作用短时
Respiratory protective devices - plug - in connection between lung governed demand valve and facepiece for self - contained open - circuit compressed air breathing apparatus for use by german fire brigade 呼吸保护器.德国消防队用自调需氧量氧气调节阀与独立
Respiratory protective devices - self - contained closed - circuit breathing apparatus , compressed oxygen type - part 2 : short duration - compressed oxygen type for moderate work rates ; requirements , testing , marking 呼吸保护器.自闭路呼吸装置.第2部分:适度工作用短时
Respiratory protective devices - lung governed demand self - contained open - circuit compressed air breathing apparatus with full face mask or mouthpiece assembly for escape - requirements , testing , marking ; german version en 402 : 2003 呼吸保护器.逃生用全面罩式或口罩组件式自调需氧量自
Besides eye protection products , our lineup also includes respiratory protective devices including simple masks , dust gas masks and powered respirators , which are collectively developed and sold under the yamamoto brand 不仅能用在保护眼睛上，我们还以yamamoto品牌开发了呼吸用保护器，从简单的面具到带防尘，防毒，电动通气等功能的呼吸保护器等各式产品。
