Description：

Plain tube (no additive tube) is manufactured only with clean tubes whose vacuum is preset. It can avoid the effect of wall treatment and additive on blood and also provide enough and non - polluted serum specimen for clinical test. Plain tube (no additive) is used in blood collection and storage for biochemistry, immunology and so on in medical inspection.

Features：

For plain tube (no additive), the influence of additive on blood is avoided to the greatest possible extent. Clinical examination should be operated until full of blood coagulation.