JINAN TYK UNITED SCIENCE CO., LTD(TYK)founded in 2001 is the supplier and exporter of 3.3 borosilicate colored and clear glass tubes & rods, neutral glass tube & rods (pharmaceutical glass tube & rods),lead and lead free glass tube &rods,pyrex glass tube&rods,soda lime glass tube &rods,glass ampoule&vial,glass instruments, glass crafts&glass houseware, glass ground joint, solar products, led lighting etc.