免费国产在线一区二区,亚洲国产成人av国产自,国产精品久久久久久久影院,av在线播放日韩亚洲欧我不卡

Welcome to the official website of Legret Metal Company
Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
National consultation hotline:+86 135-2799-2739
Contact US
mobile phone: 135-2799-2739
Service hotline: 0769-38893080
Email: anson@dglzd.com
Address: Dongguan lvzhidao Metal Co., Ltd
Contact person: Manager Zeng
Solder bar

Solder bar Sn45Pb55

Product parameters

☆ good fluidity and wettability< br> ☆ excellent antioxidant, less tin slag< br> ☆ appropriate additives to change the crystalline junction of solder joint Structure, reduce internal stress and resist whisker growth< br> ☆ excellent welding performance, few pull points and bridging;

Scope of application

This product is applicable to the tin spraying operation system on the surface of PCB, and is widely applicable to the wave soldering operation of automatic lead-free soldering furnace.

Lvzhidao brand tin bar adopts high-purity metal raw materials, and effectively controls the content of metal oxides and non-metallic impurities under strict quality control. The produced tin bar has uniform and smooth surface, high purity, fast melting, good fluidity, excellent wetting performance, full and bright solder joints and few oxide slag. It is suitable for all kinds of wave soldering and manual soldering with high quality requirements. Our company continuously develops and can provide a variety of alloy proportions and types of lead-free tin bars for you to choose from.

婷婷 色五月 亚洲 色图| 人妻av中文字幕一区二区三区| 麻豆午夜福利国产高潮偷啪| 曰本大码熟中文字幕| 无码人妻影院| 性性性性性性性久久久久久久久久 | 亚洲高潮喷水无码AV电影| 日韩免费视频一一二区| 亚洲精品成人片在线观看精品字幕 | 精品人一区二区三区伦蜜桃免费| 日韩AV资源| 欧美人与zoxxxx另类| 99精品乱码久久久久夜深人妻| 午夜福利无码一区二区| 国产清纯在线一区二区| 你懂的AV九色| 天天吧综合视频在线| 国产精品一区二区中文| 国产尤物在线| 俄罗斯胖老太作爱视频| 日韩AV无码免费播放| 无码自慰一二三区| 一区二线视频| 玖玖高清无码| 久久婷婷色五月综合图区| 人人妻碰碰碰免费| 欧美性白人极品1819hd| 亚洲av成人无码天堂| 亚洲最大国产成人综合网站| 特级毛片在线大全免费播放| 午夜片少妇无码区在线观看| 久久69国产精品久久69软件| 精品永久免费| av熟女资源| 精选无码一二三区| 成人性视频了一区| 18禁无码AV插插插| 二区三区在线| 九九在线中文字幕无码| VR成人片在线观看| 在线一区观看视频|