Shenzhen Best Electronics Co.,Ltd
Single tube:Philips,Colin,Datascope, Fukuda Denshi,Spacelabs, Older Welch-Alln,Critiare,Siemens,Mindray.Goldway Machines
Double tube: GE-Marqutte ,Datex-ohmeda, Critikon,New Welch-Allyn
180 days warranty if without artificial damage;
If the items are out of 180 days warray, the customers should pay
for the shipping cost and repair fees.