Dongguan Zuolong Machinery Co., Ltd. upholds a spirit to be down-to-earth and fearless in the development. Now we have many honors and certifications. Zuolong Machinery's location enjoys a beautiful environment with traffic convenience, which is good for the outward transportation of computerised elastic cutting machine . Since the establishment, Zuolong Machinery has always been focusing on the R&D and production of computerised elastic cutting machine . With great production capability, we can provide customers with personalized solutions according to their needs. Zuolong Machinery is provided with a complete production management system and a stringent and efficient R&D and design team. We can quickly understand customers' needs and provide efficient and professional OEM/ODM services.

Quality Standard for straight thread connections GB5782-86 standard, GB5785-86 standard, GB5783-86 standard, GB5786-86 standard.Straight thread is a thread that has no cone change from the beginning to the end,Most threads are like this,For example, commonly used public bolts.The connection method of the straight thread sleeve is to peel off the longitudinal rib and the horizontal rib of the end of the steel bar by cutting,Then roll directly into ordinary straight thread,Connected with a specially made straight threaded sleeve,Form a steel bar connection.Large diameter threaded steel bars (diameter 25, diameter 28, diameter 32, diameter 36) in connection technology,The original practice is;Lap binding, manual arc welding, flash butt welding, electroslag pressure welding, etc.In recent years,Flash butt welding and electroslag pressure welding have become the main means of steel bar connection;Flash butt welding can only work on the ground.But there are also some other conditions that affect,The welding of th

What method is used to repair the thread wear of the column of the hydraulic press? You can use 2211F metal repair material to repair the thread wear of the hydraulic press column on site.