China
Qingdao Hulk Fitness Co.,Ltd is located in Qingdao city, which is one of the most important exporting port. It's built in 2010 as a factory by a high polymer material engineer who is aimed at producing the best quality rubber fitness products with the best price. So he took about one year to research the technology and in those days he usually traveled many cities and consult many Professors just in order to look for the best material. And after thousands of times test and...
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