国产人妻人伦精品无码.麻豆,玩弄japan白嫩少妇hd,国产裸体美女永久免费无遮挡,纯黑色巨口虞美人杂交3粒种子

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
Solder wire

Solder wire Sn30Pb70

Product parameters

◆ good weldability and short wetting time < br > ◆ less rosin splash during brazing < br > ◆ rosin in the line is evenly distributed and has good continuity < br > ◆ no bad smell, less smoke, no harmful gas < br >

Scope of application

It is suitable for tin plating of wires and cables, sintering of circuit substrates, tin lining of components, wave soldering of components and manual soldering of components.

Lvzhidao lead-free solder wire completely passed SGS test.

In the dust-free and environment-friendly special workshop, high-purity environment-friendly tin ingot, unique flux formula and strict implementation of ISO quality management system are adopted,

The German direct reading spectrometer was introduced to control the quality and produce lead-free solder wire in line with ROHS standard.

★ made of pure tin, with good wettability, conductivity and thermal conductivity.

★ the flux is moderate and does not splash during welding. It can be customized by customers.

★ the winding is neat without knotting, easy to weld and high efficiency.

★ environment friendly lead-free tin wire meets ROHS standard and SGS certification


精品无人乱码一区二区三区| 不断作死后我成了白月光| 欧美黑人又粗又大的性格特点| 9lporm自拍视频区九色| 韩国免费A级毛片久久| 97精品超碰一区二区三区| 公交车上内裤滑进去了会怎么样| 又湿又紧又大又爽A视频| 国产精品黄黄久久久免费看| 一女被五六个黑人玩坏视频| 双性美人被调教到喷水a片| 公交车上~嗯啊被高潮| 强开小婷嫩苞又嫩又紧视频| 三上悠亚人妻中文字幕在线| free紧videoxx粗又长| 欧美精品色婷婷五月综合| 进女小姪女体内的视频| 一二三四在线观看免费高清| 国产寡妇xxxx猛交69| 亚洲色成人网站WWW在线观看| 日本少妇被爽到高潮无码| 国精产品999一区二区三区有限| 青椒国产97在线熟女| 欧美高清vivoes69| 24小时日本在线www免费的| 艳乳欲仙欲死在线观看| 99在线精品免费视频九九视| 校花奶头好大揉得好爽| zoomvideozoom| 闺蜜和我被黑人4p到惨| 成人欧美一区二区三区1314| 女女车车的车车视频免费| 男人j进女人p免费视频| 自拍偷自拍亚洲精品被多人伦好爽| 在公车上被一个接一个| 无码av免费一区二区三区试看| 校草被两个混混脱裤玩j| 国产精品无码翘臀在线观看| 少妇特黄a一区二区三区| 亚洲精品色情app在线下载观看| 国产呦系列呦交|