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Zibo Qiangqiang Group is a group company restructured and established by Zibo High Strength Bolt Factory which conforms to the modern enterprise system. , more than 120 engineers and technicians, is a professional manufacturer of high-strength bolts and nuts in the country, with an annual output of 80 million sets of various high-strength bolts, with an annual output value of 500 million. The production capacity of "Li Shi" brand high-strength bolts was rated as Shandong famous brand, national inspection-free, national top ten assured brands. The company has been successively rated as a high-tech enterprise in Shandong Province, a civilized unit in Shandong Province, a provincial-level beautiful factory, a garden-style unit, and a designated factory for the machinery industry in Shandong Province.

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Zibo Qiangqiang Group is a group company restructured and established by Zibo High Strength Bolt Factory which conforms to the modern enterprise system. , more than 120 engineers and technicians, is a professional manufacturer of high-strength bolts and nuts in the country, with an annual output of 80 million sets of various high-strength bolts, with an annual output value of 500 million. The production capacity of "Li Shi" brand high-strength bolts was rated as Shandong famous brand, national inspection-free, national top ten assured brands. The company has been successively rated as a high-tech enterprise in Shandong Province, a civilized unit in Shandong Province, a provincial-level beautiful factory, a garden-style unit, and a designated factory for the machinery industry in Shandong Province.

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Zibo Qiangqiang Group is a group company restructured and established by Zibo High Strength Bolt Factory which conforms to the modern enterprise system. , more than 120 engineers and technicians, is a professional manufacturer of high-strength bolts and nuts in the country, with an annual output of 80 million sets of various high-strength bolts, with an annual output value of 500 million. The production capacity of "Li Shi" brand high-strength bolts was rated as Shandong famous brand, national inspection-free, national top ten assured brands. The company has been successively rated as a high-tech enterprise in Shandong Province, a civilized unit in Shandong Province, a provincial-level beautiful factory, a garden-style unit, and a designated factory for the machinery industry in Shandong Province.