Dear Sirs, We , AB Medical Co., Ltd , is a leading manufacturer, making blood vacuum collection tube brand named by V-Tube in Korea . Now we are selling South Asia , Middle Asia , Europe and South America at competitive price with good quality . Quality is decided by three factors. First factor is a tighened safety cap and inner cap to keep vaccum for 18 months and not to be openned by 3,500 rpm . Second factor is technology of gel and regent to keep a good result of diagnos ( we made a gel and reagen by our selves ) . Third is a automatic facility skill to mkae Blood Collection tube with even good quality by high speed. With enough experience and skill for three factors mentioned above, Blood Collection Tube Plant have to be made . We can offer you best price plant of blood collectiopn tube , offering a manufacturing skill and know-how of making gel and reagent at the same time. I am looking forward to hearing from you. best regardsJustin