laboratory glass tube 1.made of borosilicate glass, which is acid and alkali resistant 2.our glass has passed ISO9001

laboratory glass tube1. made of borosilicate glass, which is acid and alkali resistant and the highest temperature this glass tube can endure will be 820 degrees.2. our glass has passed ISO9001, which there are only three manufacturers in China have got

3. we have our own furnace to make production for the tubes, of which the diameter is from 3.7mm to 315mm. We have also our own processing workshop and there are many staff who is specialized in the processing of those test tubes. So in comparison with those manufacturers who buy tubes from us and then make processing to them, our products will be cheaper than theirs from the respect of cost.