中文无码一区二区不卡ΑV,欧美人与动性XXXXBBBB,我和公发生了性关系视频,体育生小鲜肉勃起VIDEOS

歡迎進(jìn)入深圳市錦鴻宇實業(yè)有限公司官網(wǎng)!
News
NewsNews

Non standard precision parts processing, with high precision requirements

時間:2023-04-07瀏覽次數(shù):3520

We know that the processing of non-standard fine parts requires high accuracy, so what should be paid attention to in the process of fine processing, let us introduce to you from our editor Jin Hongyu:

The processing precision of non-standard fine parts must be processed in strict accordance with the additional drawings. The processing dimensions are all qualified parts within the allowable error range. Therefore, the requirements for processing fine parts are to be processed in strict accordance with the theoretical dimensions.


The processing of fine parts is mainly based on the size requirements. For example, what is the diameter of a square cylinder. There are strict requirements. The positive and negative errors are within the scope of the rule requirements. It is required that the positive and negative errors are also regular. For example, if the diameter of an in-line cylinder is too large and exceeds the allowable range of error, it will not be inserted. If the actual diameter is too small, it will exceed the lower limit of the allowable negative error. , It will cause the problem that the insertion is too loose and not tight.


These are all substandard products, which are to be scrapped or reprocessed, which will inevitably lead to an increase in cost. Therefore, it is very important to ensure the accuracy of non-standard fine parts processing.


We are a professional manufacturer of metal non-standard parts and components. We have accumulated many years of technology for processing ¢0.5-¢20mm stainless steel, titanium, aluminum and other fine metal parts.

服務(wù)熱線:13631565136
手機:18926579610
電話:0755-26740010
郵箱:senyuanmoju@126.com
地址:廣東省深圳市寶安區(qū)石巖街道水田工業(yè)區(qū)寶石東路123號7棟1樓

掃一掃關(guān)注我們

两个男人吮她的花蒂和奶水视频| 亚洲熟女综合一区二区三区| 亚欧洲乱码视频一二三区| 国产精品久久久久久久久电影网| 成视频年人黄网站免费视频| 对白荡伦系列之子你不能这样我| 欧美放荡办公室VIDEOS按摩| 上司人妻互换HD无码中文字幕| 亚洲中文字幕永久在线天堂 | 少妇放荡的呻吟干柴烈火| 宝贝小嫩嫩好紧好爽H在线视频| 久久蜜桃精品一区二区三区| 亚洲欧美自偷自拍另类小说| 免费无码成人AV在线播| 亚洲色无码国产精品网站可下载| 无码无套少妇毛多18P| 成人区色情综合小说| AV一本久道久久波多野结衣 | 亚洲精品一区中文字幕乱码| 曰批全过程免费视频观看软件下载| 人妻少妇精品专区性色AV| 女人下边被添全过视频| 挺进毛还没长稚嫩的小花苞网种| 欧美熟妇呻吟猛交XX性| 久久久一本精品99久久精品66 | 色婷婷亚洲婷婷七月中文字幕| 浪荡受NP双性合集| 公妇仑乱在线观看| 免费人成在线观看网站| 粉嫩虎白扒开视频毛女片| 亚洲AV永久无码精品表情包| 福利COSPLAYH裸体の福利| 又大又粗欧美黑人AAAAA片| 色偷偷色噜噜狠狠网站久久| 日产无码久久久久久精品| 丰满熟妇岳AV无码区HD| 国产丝袜视频一区二区三区| 人妻丰满熟妇AV无码区HD| 把极品白丝班长啪到腿软 | 德国的老太婆的毛很多| 日韩人妻精品无码一区二区三区|