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

AAAAA级少妇高潮大片| 极品少妇HDXX麻豆HDXX| 久久久久久久久毛片精品| 国产嫖妓一区二区三区无码| 免费看美女裸露双乳洗澡视频| 人妻无码久久一区二区三区免费| 国产精品A∨一区二区三区| 中文字幕熟妇人妻在线视频| 亚洲欧洲VAT| 黑色包臀裙秘书啪啪久久网站 | 国产婷婷色一区二区三区| 又硬又粗进去爽A片免费无码| 天天爽夜夜爽人人爽一区二区| 四川50岁熟妇大肉唇| 吉利星越乚2023新款价格图片| 最新69成人国产精品视频免费| 国精品人妻无码一区二区三区蜜柚 | 特黄A级毛片| 国产A级毛片| 小粉嫩精品A片在线视看| 高潮久久久久久久久不卡| 欧美成人精品视频在线观看| 亚洲精品国产精品国自产| 国产麻豆成人AV色影视| 乱妇乱女熟妇熟女网站| 免费在线黄色电影| 色噜噜狠狠狠综合曰曰曰| 车子一晃一晃的就进去D乚| 扒开内裤边吃奶XXOO| 国产性生交XXXXX无码| 成人电影免费看| 欧美肥婆性猛交XXXX| 五十路○の豊満な肉体| 男女啪啪吃奶GIF动态图| 国产精品成人无码免费| 国产精品高潮呻吟AV久久| 久久精品一区二区三区| 边做饭时猛然进入高H| 揉她小豆豆揉到失禁H| 日本久久久久久久久精品| BGMBGMBGM胖老太太东北|