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  • What is the pricing factor for cold-formed steel equipment

    What is the pricing factor for cold-formed steel equipment

    As an important steel, cold-formed steel is receiving more and more attention. Cold-formed steel equipment has been used more and more widely in some steel structures. When cold-formed steel is used, welding is unavoidable, and the quality of welding technology will affect its use. The cold-forme...
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  • Longlong light steel villa, why is the advantage so great?

    Longlong light steel villa, why is the advantage so great?

    In recent years, the state has explored the ‘separation of three rights’ in the ownership, qualification and use of homesteads. The implementation of this policy will activate the 2,000-year-old rural land assets, which heralds the arrival of the “near town” light steel as...
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  • Top 10 trends in photovoltaic 2025

      In the next 5 to 10 years, major countries and regions in the world will gradually adopt renewable energy as the main power source for the power grid. Photovoltaics will become the main force in renewable energy. How to ensure the safety, reliability and economy of power generation assets ...
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  • Advantages and disadvantages of different greenhouses in greenhouse design

    1. Earth-wall solar greenhouse The earth-wall type solar greenhouse, as the name suggests, is that its back wall is rolled and piled with field soil. The general span is 10-15 meters, and the underground is dug about one meter deep. In the past, the scaffolding used 25-30mm steel pipe welded stru...
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  • Detailed introduction of different types of roof-mounted distributed photovoltaic power generation

    At present, installing distributed photovoltaic on the roof can insulate, generate income, and save electricity costs. It can also waterproof the roof and even make it into a sun room. But how is distributed rooftop photovoltaic generally installed? Will there be adverse effects on the roof after...
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  • In addition to photovoltaic roofs, there are 8 types of applications

    With the increasing application of green buildings, photovoltaic building applications have also attracted much attention. In addition to the combination of photovoltaic and building, there are the following forms in addition to roof applications. 01 Shade Shade system   Corresponding sunsh...
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  • Cold Bending Machine Safety Operating Procedures

    Application scope of Longlong cold bending machine Cold bending machine use scope: 1. Project scope: greenhouse construction, photovoltaic power station, warehouse shelves, etc. 2. Steel scope: U-shaped steel, angle steel, C-shaped steel, rail steel and some non-standard shaped steel. Outstanding...
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  • How to use and maintain new cold roll equipment

    When the I-beam cold bending machine is in hand, the manufacturer should first debug to reach a state suitable for the needs. When starting to use, pay attention to: 1. The new machine should be used to check whether the motor insulation is good, whether the reducer is full of lubricating oil, wh...
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  • We started! Ensure the safety of our products and employees

    As the new coronavirus rages in China, up to government departments, and then to ordinary people, our Tianjin Longlong Metal Products Factory is actively taking action in all walks of life to do epidemic prevention and control. Prevention and control work. Although our factory is not in the core ...
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  • Key points of column-free soilless cultivation in greenhouses

    Key points of column-free soilless cultivation in greenhouses

    1 Equipment materials Greenhouses use reinforced concrete arches, which do not require column supports. The interior is spacious and convenient for installation and various operations. The nutrient solution pond is located at one end of the greenhouse below the ground level, and a length of 3 me...
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  • The difference between hot rolled steel and cold rolled steel

    The difference between hot rolled steel and cold rolled steel

    First, hot rolled steel By definition, steel ingots or slabs are difficult to deform at normal temperature and difficult to process. Generally, they are heated to 1100-1250 ° C for rolling. This rolling process is called hot rolling. The termination temperature of hot rolling is generally 800-90...
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  • Tianjin LongLong Metal Products Factory :Type of rolled material

    Tianjin LongLong Metal Products Factory :Type of rolled material

    There are tens of thousands of various kinds of metal rolled materials required by various sectors of the national economy. Rolled materials can be divided into various steels and non-ferrous metals and alloy rolled materials such as copper, aluminum, and titanium according to the types of metal...
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