成年人黄色大片大全_日本乱人伦片中文在线播放_亚洲AV小说最新在线网址_激情五月深爱五月_特一级熟女毛片免费观看_高跟丝袜日韩av_视频一区二区三区欧美精品_欧美综合视频_很黄很色很暴力的动态图好狠_影音先锋欧美a黄色一级

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 bar

Solder bar Sn63Pb37

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.

é?????

?????¨???é?
???é????¨é??è?¨.jpg