97在线观看播放,朝鲜女人大白屁股ass,艳妇臀荡乳欲伦交换在线播放,久久天堂综合亚洲伊人hd妓女,午夜寂寞少妇aaa片毛片

Welcome to Hashimoto Precision Metal (Shenzhen) Ltd

Mailbox：

info@hskcoltd.com

Hashimoto Precision Metal (Shenzhen) Ltd

Specialize in precision stamping parts since 1935
News
Your position： Home > News > FAQ > FAQ of stamping parts in production

Contact us

Hashimoto Precision Metal (Shenzhen) Ltd

Address: No. 25, Xinfa East Road, Xiangshan Community, Xinqiao street, Bao'an District, Shenzhen 518125, P.R.China

Tel: +86-755-27267875

Email: info@hskcoltd.com

FAQ

FAQ of stamping parts in production
Release time：2021-09-07Views：11994


1. Adhesion and scratch: defects on the surface of part or tooling due to the friction between material and punch or die.

2. Burr: it mainly occurs in the shear die and blanking die. Burr will occur when the gap between cutting edges is large or small.

3. Deflection: Due to uneven stress, poor matching of tensile reinforcement, or poor control of the press slide, resulting in assembly corners or embossing parts have twists and turns, strain.

4. Uneven: Foreign matters (iron scurf, rubber and dust) are mixed in the coil front line to cause uneven.
5. Offset: When the piece is shaped, the site first contact with the mold was squeezed and a line was formed.
6. The punching size is too large or too small: In case of large difference from the punch size, the factors such as design size, machining accuracy and cutting clearance shall be considered.
Inquire Now * required
Submit
主站蜘蛛池模板： 无码乱码av天堂一区二区| 熟女少妇内射日韩亚洲| 三年片中国在线观看免费大全| 9久9在线视频 | 传媒| 国产无遮挡又黄又爽免费网站| 无码a级毛片免费视频内谢| 日韩欧美一区二区三区免费观看| 亚洲va韩国va欧美va| 77777亚洲午夜久久多喷| 日本少妇喷浆| 免费少妇a级毛片| 一区二三国产好的精华液| 99久久无码一区人妻| 无码人妻丰满熟妇区毛片| 亚洲av无码一区二区乱子伦as| 国产精品免费视频网站| 人与狗精品aa毛片| 中国老太卖婬hd播放| 好吊妞视频这里有精品| 少妇被粗大的猛烈进出动视频| 亚洲中文字幕无码爆乳av| 中文字幕人成无码人妻综合社区| 日韩av中文无码影院| 乱亲女h秽乱长久久久| 久久久久久久综合色一本| 男女吃奶摸下我太爽了动态图| 亚洲精品无码久久毛片| 18禁美女裸体免费网站| 中国凸偷窥xxxx自由视频| 久久亚洲精品中文字幕无码| 中国精学生妹品射精久久| 国产全肉乱妇杂乱视频| 中文字幕无码日韩专区免费| 国产成人av三级在线观看按摩 | 午夜精品久久久久久久99热| 亚洲经典千人经典日产| 国产性生交xxxxx免费| 亚洲av无码日韩av无码网站冲| 门卫又粗又大又长好爽| 无码精品日韩中文字幕| 无码人妻丰满熟妇区毛片|