We are a major manufacturer and exporter of scaffolding couplers, offering various kinds of dorp forged and pressed scaffolding couplers. The detailed scope of our businees is in line with double coupler, swivel and half swivel couplers. That is the basic of our product. We arrange our production procedures according to our respectable and honorable customers with concrete requirments.

Shandong Yunyong International Co., Ltd. is a heavy machine provider that designs and manufactures high-quality product in the industries. Its factory established in 2010, it is headquartered in Jinan, China. We have a hard-working and professional team. Yunyong International company is the factory's export trading company, responsible for the factory's global promotion and business negotiation docking. Our main products are excavators, loaders, excavator attachments and parts, also we have some branded used excavators, such as, Doosan, Sany, XCMG and so on. We have advanced standardized production lines and a team of experienced engineers who can carry out product design and development, and constantly we optimize and upgrade the products in order to meet the higher requirements of our customers. Over the past 14 years, our company has established the coorporated ralationship with all over the world. We continue to provide our global customers with construction machinery industry solutions and new product innovation and research and development, and at the same time we continue to optimize our production lines and product design, to produce more and more advanced products to meet the individual requirements of customers. Custumers success has alway been the top concern for our company, Going forward, we are still commited to creating value for our business partners and contributing to their succuess.

Shandong Prima Construction Formwork Co., Ltd. is the biggest manufacturer and supplier of scaffolding and formwork systems in China. We have the advanced forging, casting, punching, welding, colding forming and surface treatment lines in workshops.

HENGSHUI STRONGFLEX FLUID TECH CO. Ltd -We are a leading and professional manufacturer of hydraulic hoses, rubber hoses, hydraulic fittings, adapters, and machines in China for 25 years. All of the hoses are produced strictly under the standards of DIN EN and SAE 100 with ISO 9001: 2015 and MSHA certificate...Moreover, OEM and ODM are welcome and will be executed well.