Doctor's Friend Medical Instrument Co., Ltd. No.28, Lane 13, Sec. 3, Zhong Shan Rd., Tanzi Shiang, Taichung County, 42756, Taiwan (R.O.C.) Tel : 886-4-2534-7777 Fax : 886-4-2533-8669 E-mail : medical.df@msa.hinet.net