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 enjoys a superior geographical location with many transportation routes. This facilitates the going out of people and the transportation of goods. Since the establishment, Zuolong Machinery has always been focusing on the R&D and production of industrial electric scissors . With great production capability, we can provide customers with personalized solutions according to their needs. Zuolong Machinery not only has a great production capability, but also a professional technical and R&D team. We can continue to provide professional processing services. We are also available in customized services based on the picture or sample.

What is the size of the old sewing machine? The specifications of the old sewing machine are generally 880*410*790.Different brands,Specifications vary slightly.Sewing machines are also called sewing machines or sewing machines,Is to use one or more sewing thread,To form one or more lines on the seam material,A machine that intertwined or stitched one or more layers of seam material.It consists of four parts: head, seat, transmission and accessories.The sewing machine was invented during the first industrial revolution,The main purpose is to reduce the workload of manual sewing in garment factories.In China in the late 1950 s,Sewing machines have become one of the so-called four big pieces.Sewing machine can sew cotton, hemp, silk, hair, artificial fiber and other fabrics and leather, plastic, paper and other products,The stitched lines are neat and beautiful, smooth and firm,Sewing speed, easy to use.

What are the threaded interfaces of the pressure gauge? According to the standard of pressure gauge in China, the thread of pressure gauge joint is made of public thread, and should conform to the regulations in the following table.50, 60 M14 × 1.100,150,200,250 M20 × 1.Since China's reform and opening up,Pressure gauge on imported production process equipment,In addition to the various pressure measurement units,The connection thread of the pressure gauge joint is also diverse.In addition,Of the millions of pressure gauges exported by China every year,The pressure gauge connection thread required by foreign investors is rarely a public thread,Is the same thread,The thread codes for pressure gauges in China, Japan and the UK are also different.It is like a 55 ° 1/4 'cone pipe thread,The code in our old standard is called 'ZG1/4 ',The code in the new standard is called 'R1/4 ',The British standard is also called 'R1/4 ',The code in the Japanese standard is 'PT1/4 '.The following lists the Chinese and

How to deal with hospital sewage? The hospital sewage not only contains organic pollution, but also causes physical and chemical indexes such as BOD5, cod CR and SS to exceed the standard,It also contains some special pollutants,Such as drugs, disinfectant, diagnostic agents, detergents,A large number of pathogenic microorganisms, parasite eggs and various viruses,Such as Ascaris eggs, hepatitis virus, tuberculosis and dysentery.If any of its emissions,Will inevitably pollute the water source,Spread disease.So,In accordance with national laws and regulations and out of responsibility for public safety,It is imperative to establish hospital sewage treatment facilities,Very necessary.Hospital sewage treatment purpose,It is to remove physical and chemical indexes such as BOD5, cod CR and SS in sewage and germs and viruses,To achieve environmental protection,To achieve ecological balance,It is conducive to human physical and mental health.Commonly used hospital sewage treatment is mainly divided into two ways: no