About products and suppliers:
Tradechina.com offers 1267 usp type i glass tube products. About 2% % of these are quartz tubes, 1%% are glass bottles, and 1%% are glass.
There are 71 usp type i glass tube suppliers, mainly located in Asia. The top supplying countries or regions are usp type i glass tube, China, and 100%, which supply {3}%, {4}%, and {5}% of {6} respectively.