双乳被一左一右吃着的,无码人妻精品一区二区三区在线,真人高清实拍女处被破的视频,啊灬啊灬啊灬快灬高潮了女

Welcome to the official website of Shenzhen Ledfocus Precision Manufacturing Co., Ltd.!
News
Industry news

Where are you now:Home >> News >> Industry news
Differences between PCB and PCBA
Time:2021-10-27 Read: 1894

  Some novices in the electronics manufacturing industry may not be very clear about PCBA and PCB, but they may also be confused. When they are new to the electronics industry, they will also encounter such problems. In order for everyone to quickly identify and reduce unnecessary troubles, Leicas will introduce the difference between PCB and PCBA.


  First.PCB


   There are many names for PCB, which can be called circuit board, circuit board, printed circuit board, etc. PCB is an important electronic component, used to support and connect electronic components.


  Second, PCBA


  PCBA is the English abbreviation of printed circuit board assembly, but in foreign countries, PCBA is generally translated into PCB assembly. Through surface mounting, DIP plug-in and testing, the printed circuit board blank is formed into a finished product, which is called PCBA.


   Third, the difference between PCBA and PCB.


   The printed circuit board is an empty board with nothing on the surface. PCBA is processed on an empty PCB board with resistors, capacitors, chips and other components mounted on it to form a circuit board with certain functions. The core part of all electronic products is composed of PCBA.


Contact Us
Shenzhen Ledfocus Precision Manufacturing Co., Ltd.

Address: Room 1204, Dahong (Xinqiao) Science and Technology Innovation Park, No. 48, Xinyu Road, Shajing Street, Baoan District, Shenzhen

Phone: 0755-29727486 0755-83734215 0755-83734236

Person in charge: Mr. Fan 13088821718

Email: roman@leikashi.com

Business section #605

Email: allen@leikashi.com

Website: m.ya198.com

Service hotline
0755-83734236
? 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粵ICP備2021139374號
  • Links:
亚洲一区二区三区写真| 初尝人妻少妇小军| 色噜噜狠狠色综合成人网| 日韩人妻无码av一二三区| 天干天干天啪啪夜爽爽99| 善良的女房东味道2在线观看| 韩国公妇里乱片a片| 人妻无码视频一区二区三区| 国内精品一区二区三区亚洲熟女乱综合一区二区 | 男男乱J伦高HH黄暴双性| 国产精品打着电话偷着情| 特黄做受又大又粗又长大片| 国产精品 重口 调教系列| 亚洲 欧洲 日产| 少妇人妻无码永久免费视频| 中文字幕丰满伦子无码| 亚洲av在线观看| 永久免费av网站| 亚洲午夜成人精品无码色欲| 极品老师腿张开粉嫩小泬| a片粗大的内捧猛烈进出视频黑人| 久久久99精品成人片中文字幕| 护士做爰乱高潮全过程小说| 国产剧情av精品迷奷| 97无码免费人妻超级碰碰夜夜| 国内精品伊人久久久久AV| 亚洲av成人无码网天堂| 国产精品毛片大码女人| 无人区码一码二码三码是什么 | 办公室娇喘的短裙老师| 金瓶悔1一5扬思敏完整版| 亚洲区色情区激情区小说色情书 | zoom与人性zoom| 国产精品扒开腿做爽爽爽视频| 深爱婷婷老司机av视频| 国产第一页屁屁影院| 97se亚洲综合自在线| 国产精品第一区揄拍无码| 久久人妻无码精品一区二区三区| 亚洲综合欧美色五月俺也去| 漂亮人妻被黑人久久精品|