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1.zinc alloy chest piece, excellent sound conduction , little acoustic attenuation.
2.standard dual PVC tubing ,well-sealed dual sound conduction channel, good resistance to ambient interference color is optional .
3.High quality rolled steel connecting spring, tightness is reasonable
4.three plastic black bells of chest piece are applicable for auscultation of from adult to neonatal, embryological or cacophony of vase
5.two pair of ear tips with different hardness , two different size spare diaphragms .
6. the attached transparent multi-purpose bag includes
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 | Model number:the sprang rapport stethoscope with two protect ring SW-ST03E
1.zinc alloy chest piece, excellent sound conduction , little acoustic attenuation. 2.standard dual PVC tubing ,well-sealed dual sound conduction channel, good resistance to ambient interference color is optional . 3.High quality rolled steel connecting spring, tightness is reasonable 4.three plastic black bells of chest piece are applicable for auscultation of from adult to neonatal, embryological or cacophony of vase 5.two pair of ear tips with different hardness , two different size spare diaphragms . 6. the attached transparent multi-purpose bag includes | |
 |  |  |
| Model number:the sprang rapport stethoscope with two protect ring SW-ST03E
1.zinc alloy chest piece, excellent sound conduction , little acoustic attenuation. 2.standard dual PVC tubing ,well-sealed dual sound conduction channel, good resistance to ambient interference color is optional . 3.High quality rolled steel connecting spring, tightness is reasonable 4.three plastic black bells of chest piece are applicable for auscultation of from adult to neonatal, embryological or cacophony of vase 5.two pair of ear tips with different hardness , two different size spare diaphragms . 6. the attached transparent multi-purpose bag includes | |
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