Topson enjoys good word-of-mouth in the world. The architectural metalwork is one of the main products of Topson. Topson modern aluminum pergola has gone through rigorous security standards. It has been certified under China's CCC and CEMC, Canada's CSA, America's UL, and Japan's S-MARK and VCCI. The product had passed the SGS Natural Salt Spray Test, which means it is acid and alkali resistant. This product is not just the stuff to be placed at a space but it actually completes a space. - Said one of our customers. The surface of it has been treated with special polishing, making it retain its original shine after many times of uses.
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