Beijing Sanwei Sporting Goods Co., Ltd. is a professional manufacturer of table tennis balls, table tennis rackets, table tennis equipment, table tennis clothes and table tennis shoes. We own a proprietary intellectual property of table tennis rackets with super-light carbon mat added in. The patent number is ZL-02246034.9. Super-light soft carbon of felt structure is a kind of thin carbon fiber mat wet processed, which is a new technology. Its fibers are multi-directionally inter-woven, with a smooth surface and strong adsorb ability. The carbon mat is 30g/square meter on average and the compressed thickness is 0.1 mm. Each layer of fiber mat is approximately 1g, so suppose a pure wooden blade is 80g. Then it will be 90g when 9 layers of fiber mats are added. Let us take the 10-layer wood and 9-layer carbon blade for example. It consists of 10 layers of thin wood and 9 layers of hig

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