... 2.Concrete Truck Mixer 3.Concrete Pump:portable pump and truck Shandong Yuanyou Heavy Industry Science & Technology Co., ... abbreviation, is established in 2001. Since it's foundation, the main specialization of Yuanyou is manufacturing the following equipments:1. ... our distributor, agent, dealer, trader, contactor, etc all oonver the world, not just including Russia, India, Indonesia, Malysia, Egypt, ...