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      激情一区二区三区视频,亚洲日本一区二区三区不卡不码,国产午夜精品福利91,国产精品视频福利一区二区,东京热无码中文字幕av专区,国产91小视频在线观看,一级a爱片免费视频观看,久久AV中文综合一区二区
      Welcome to the official website of Legret Metal Company
      Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
      National consultation hotline:135-2799-2739
      Contact US
      mobile phone: 135-2799-2739
      Service hotline: 0769-38893080
      Email: lzd@dglzd.com
      Address: Dongguan lvzhidao Metal Co., Ltd
      Contact person: Manager Zeng
      Needle tube Solder paste

      Solder paste Sn63Pb37

      Product parameters

      ★L(fēng)oose reflow process window
      ★Excellent wetting and tin eating ability
      ★L(fēng)ow bubble and void ratio
      ★The adhesive force can be maintained for a long time
      ★Transparent residue

      Scope of application

      Suitable for SMT industry PCB surface resistance, capacitance, IC and other electronic components welding

      The advantages of the product are as follows:

      1. Printing rolling and forming, as low as 0.3mm spacing pad can also complete exquisite printing;

      2. During continuous printing, the viscosity changes little, and the steel mesh has a long operational life. It will not dry after more than 8 hours, and still keeps good     printing effect;

      3. After several hours of printing, the original shape is still kept, basically no collapse, and the chip components will not be offset; 

      4. It has excellent weldability and can show proper wettability in different parts; 

      5. It can adapt to the requirements of different grades of welding equipment. It does not need to complete welding in nitrogen charging environment, and it can still perform good welding performance in a wide range of reflow furnace temperature;

      6. After welding, the residue is very little, the color is very light, and the insulation resistance is high, which will not corrode the PCB, and can meet the requirements of free washing; 

      7. It has better ICT test performance and will not produce misjudgment; 

      8. It can be used for paste in hole process.


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