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Shandong Shuangfeng Heavy Industry Machinery Co., Ltd., founded in 1978, is one,The company has strong technical force, advanced detection methods and perfect quality assurance system. It mainly produces QTZ31.5, QTZ40, qtz50, QTZ63, QTZ80, QTZ125, qtz160, qtz315 series tower cranes, SC200 / 200 series construction elevators, ss80 / 80 series material hoists, JS, JZC mixer series. There are 10 ser [详细介绍]
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