Investment Company Ltd. And son Tung technology development "ST" is established from 2010 to now with more experience in the field of production, design and helmet is helmet product (logo, trademarks).We bring our customers quality products as well as services, that has helped us build credibility nationally. Moreover, we always grasp the market and creating the beautiful helmet model, combines the tastes of people Vietnam and Southeast Asia.Not so, Tung Shan fitted to many modern technology and machinery to improve product quality and superior output.
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