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![]() Since the year 1986 we began to manufacture Zinc Sulfide, we have been specilizing in optical vacuum coating material field,and after many years' experience in producing and sales,our products are famous in Chiese market; Our professional and hardworking team is the basis of our development. By our staff members' hard work, the quality and output of our products is always able to satisfy our clients. We have a good reputation among our... [Details] |
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