少妇下面被精子填满视频,我看大学女生操逼的网站,久久人人妻人人爽人人爽,一本大道在线道

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 Sn99Ag0.3Cu0.7

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.

二手房| 谢通门县| 景德镇市| 万年县| 新安县| 井研县| 池州市| 永和县| 彰化市| 盈江县| 桑植县| 鸡泽县| 广汉市| 灌云县| 邻水| 安图县| 许昌市| 龙胜| 大洼县| 溆浦县| 东乡族自治县| 于都县| 贵港市| 昭觉县| 贺州市| 饶平县| 平远县| 中牟县| 昌邑市| 莱阳市| 临江市| 深水埗区| 阿拉尔市| 昭苏县| 潢川县| 北宁市| 金堂县| 屏东县| 霞浦县| 璧山县| 和林格尔县|