77777亚洲午夜久久多喷 ,国产精品无码dvd在线观看,日韩精品亚洲人成在线观看一级a性色生活片久久无少妇,精品午夜视频一区二区三区演员表,WWW夜片内射视频日韩精品成人叫床很激烈的年轻水嫩大学生,国产精品视频一区国模私拍,国产精品极品露脸清纯,一个人看的WWW日本高清视频

Hello, welcome to the website of Dongguan Runhua Precision Technology Co., Ltd!
中文版  |  English
Mr.Hou:13823289595
Announcement:Warmly congratulate Dongguan Runhua Precision Technology Co., Ltd. on the new official website!!!

Contact US

東莞市潤華精密科技有限公司
聯(lián)系人:侯先生
手機:13823289595
電話:0769-88899029
傳真:0769-88899029
QQ:723160186
郵箱:houbaocheng@runhuajm.com
地址:廣東省東莞市大朗鎮(zhèn)水口金沙一路3號
Advantages of aluminum alloy die castings as mobile phone parts
Source:未知Author:tianxun Date:2020-03-28 11:47 Browse:

       Common mobile phone alloy casings, middle plates, and middle frames have different manufacturing processes and materials, and the die-casting process is one of the most common aluminum alloy die-casting methods.

  Metal mobile phone casings, metal middle frames, metal middle plates, and current metal elements seem to have become standard for mobile phones. From the high-end iPhone7 to hundreds of low-end domestic models, various metal cases It's a storm. The metal case of a mobile phone has even become a hard indicator when buying a mobile phone, because metal seems to be equal to quality. In fact, many models are basically the same in appearance, but you can find the difference by opening the fuselage and taking a closer look.

  The high-quality metal case of mobile phones is better than the low-end metal case in terms of feel and service life, and the corresponding price is also higher. But it doesn't seem to be much different. The average user can't distinguish it at all, and choosing a mobile phone for "Xiaobai" has caused trouble. There are even many "pseudo-metals" mixed in, which are worthy of our vigilance. The main advantages of zinc alloy die-casting mobile phone casings, middle plate, middle frame and accessories.

1. Surface treatment: electroplating, spraying.

2. Does not attract iron during melting and die casting, does not corrode the mold, and does not stick to the mold.

3. Good mechanical properties and wear resistance at room temperature.

4. Low melting point, melting at 385 ℃, easy to die-cast.

5. Good casting performance, it can die-cast precision parts with complex shapes and thin walls, and the surface of the casting is smooth.

Home ??|??About us??|??Product??|??Qualifications??|??environment??|??Join us??|??News??|??Contact US
Copyright & copy; 2020 Dongguan Runhua Precision Technology Co., Ltd. All Rights Reserved 粵ICP備20023206號
Technical director of precision mould:Mr.Hou Mobile phone:13823289595
QQ:723160186??
Address:No.3, Shuikou Jinsha 1st Road, Dalang Town, Dongguan City, Guangdong Province? ?
亚洲永久无码7777kkk| 久久99国产热这里只有精品| 激情国产精品视频一区二区| 亚洲精品在线视频| 国产亚洲色婷婷久久99精品| 尹人久久大香找蕉综合影院| 亚洲自偷自偷偷色无码中文| 青青久久久久精品亚洲AV中文| 国产9i精品女同一区二区| 一本色道久久88加勒比—综合| 狠狠做深爱婷婷久久综合一区| 99c视频色欲在线| 久久丫精品忘忧草西安产品| 婷婷国产天堂久久综合五月| 久久久97精品国产一区蜜桃| 国产人妖专区视频在线一区| 国产真实乱子伦视频播放| 日韩Ar中文字幕第一页| 无码人妻丰满熟妇啪啪| 中文字幕乱人伦视频在线| 久久99国产一区二区三区| 无码国产午夜福利片在线观看| 精品国产一区二区三区不卡| 艳妇乳肉豪妇荡乳后续潘金莲| 亚洲日韩精品无码专区网址| 国产亚洲日韩欧美另类| 一区二区国产在线播放| 大地资源高清在线视频播放| 国产成A人亚洲精V品无码樱花| 亚洲成AV成人片在线观看天堂| 大香伊人久久精品一区二区| 在线精品一区亚洲毛片免费一级| 日韩精品一区二区午夜成人版| 精品人妻少妇嫩草AV无码专区| 欧美激情国产精品视频一区| 无码人妻精品中文字幕免费东京热| 亚洲国产欧美在线人成精品一区二区| 日韩一级欧美一级操逼| 最近中文mv字幕免费高清在线7| 精品人妻潮喷久久久又裸又黄| 激情人妻久久综合|