We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our administration ideal for Rotation of Polarized Light Experiment, Abbe Imaging, Ramsauer Townsen Effect, Young"s Modulus,Fresnel Holography. our products have good reputation from the world as its most competive price and our most advantage of after-sale service to the clients。 The product will supply to all over the world, such as Europe, America, Australia,Jordan, Mexico,Austria, Uruguay.With the advanced workshop, professional design team and strict quality control system, based on mid- to high-end marked as our marketing positioning, our products are fast selling onto European and American markets with our own brands such as below Deniya, Qingsiya and Yisilanya.