Weihai Hongyu Medical Devices Co. is a professional manufacturer on vacuum & non-vacuum blood collection tube. Our products include various kinds of tubes, such as plain tube, surum tube(clot activator),EDTA tube, ESR tube,citrate tube(coagulation tube), glucose tube(potassiom oxalate & sodium fluoride), sodium/lithium heparin, SST tube(gel & clot activator). We've passed ISO13485 and obtained CE report for our vacuum blood collection tube. Besides, we can also provide with the matched needles and holders. jennifer(a)hongyumed.com