Qingdao Sanmen All-win Machinery Co., Ltd. is a professional company focusing on producing trampolines , including Big round trampoline, Mini trampoline & Rectangular trampolines and other leisure products. Our products are exported to Europe, America and other countries and regions. We have 20 professional technical personnel who have Intermediate titles or above. The company has special equipment processing all kinds of housing more than 80 units, two oxygen welding machine 26, 10 lathes, 16-300 tons of punch more than 20 units.Development with the science and technology, the company invests a lot of manpower and resources on researching and development from the past which now has formed the shear, punching, forming, welding, spray, hot plating, and cold plating all in one service. Depending on the whole quality assurance system, our products are popular among domestic and foreign users.Our main advantages are as followings:1.Flow production, ISO9001 system control, quality assurance;2.Professional technical personnel, to reduce the risk of quality and accidents;3.Focus on the industry positioning, so that we can understand the needs and characteristics of the product better;4.Mature production and operation system, help you to control the cost and increase the competitiveness of products;5.Keep credit, has long-term stable cooperation relationship with customers in many countries.You are very welcome to get to know us more.