All kinds of vacuum blood tubes from 1ml-10ml both glass or pet, with three kinds of size: 13*75mm, 13*100mm, 16*100mm. plain tube, pro-coagulation tube, gel&clot activator tube, coagulation tube, heparin tube, edta tube and esr tube.\ngd vacuum blood collection tube promises to provide non-polluting and non-differential original blood specimen for medical test. blood tube includes 3 series of tubes: serum tubes, plasma tubes and whole blood tubes. then serum tube includes 3 kinds of tubes: plain tube with red cap, pro-coagulation tube