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Yu Yao No.2 standard fastener factory was established in 1973,as the most professional manufacture of fasteners for High Pressure and High-Temperature Service, we have obtained trust from the customers in every region of China. We have a long history of being a manufacture for over 30 years, so the power of technology is abundant, and the quality of product is steady, the craft is advancing, all kinds of device of ***ecting are applied. We have passed ISO 9001 authentication in 2001. Our product ranged from...
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