欧美日韩国产一二三四五区,国产区在线观看成人精品,91亚洲精品国产嫩草,国产丰满的富婆自拍对白,久久精品偷拍视频观看,国产av一区二区中文字幕,久久国产超碰女女av,久久不卡国产一区二区,欧美中文字幕一二三四区,亚洲欧美熟妇欲乱又伦

<delect id="d07zl"></delect>

    1. <rt id="d07zl"></rt>
        <rt id="d07zl"></rt>
        Welcome to Shenzhen Zhongyuan Plastic Co., Ltd!

        News



        Tel:(0755)27151698
        Fax:(0755)27150611
        Mailbox:szzyzcl@163.com / szzy@szzy99.com
        Add:Building A1 and A2, No.1 Industrial Zone, yuliu property company, Gongming town, Bao'an District, Shenzhen
        Industry information

        當(dāng)前位置:

        首頁 News Industry information
        • Characteristics of mold processing

          Characteristics of mold processing

          2024-08-01

          Mold processing refers to the processing of forming and blank making tools, in addition to shear molds and die-cutting molds. So……

          MORE
        • 醫(yī)療器械外殼加工的質(zhì)量要求

          醫(yī)療器械外殼加工的質(zhì)量要求

          2024-07-24

          醫(yī)療器械外殼的加工工藝是鈑金技術(shù)人員需要掌握的關(guān)鍵技術(shù),也是鈑金制品成形的重要工序。醫(yī)療器械外殼的加工步驟有加工基礎(chǔ)、切割下料、彎曲加工、滾壓加工、局部加工、加工設(shè)備和新工藝等。 從加工的基本原理、工藝流程、以及使用材料開始,醫(yī)療器械外殼是由生產(chǎn)中的實際零件、典型部件和常用設(shè)備,通過沖孔、沖裁以及熔切、拉……

          MORE
        • Precautions for processing plastic shell of switching power supply

          Precautions for processing plastic shell of switching power supply

          2024-07-24

          In recent years, the plastic shell of switching power supply has been widely used. The emergence of the plastic shell of switchi……

          MORE
        • 塑膠模具加工的特點

          塑膠模具加工的特點

          2024-07-17

          塑膠模具加工是指塑膠成型和塑膠制坯工具的加工,它是由上模和下模兩部分組成的,塑膠模具加工的特點有: 1、多工序。在塑膠模具加工中,經(jīng)常會用到銑、鏜、鉆、鉸、攻螺絲等多種工序。 2、批量制造小。塑膠模具不是大批量成批生產(chǎn)制造的,在許多情況下,只需要制造一對塑膠模具就能夠完成所需要加工的產(chǎn)品。 ……

          MORE
        • Advantages of power supply plastic shell

          Advantages of power supply plastic shell

          2024-07-17

          The power supply plastic shell has been quite active in our life. Take our common mobile phone charger shell as an example, its ……

          MORE
        • Process requirements for injection molding

          Process requirements for injection molding

          2024-07-10

          Injection molding is a specific cycle. There are five factors that affect injection molding: temperature, speed, pressure, posit……

          MORE
        • 塑膠外殼模具的間隙與沖壓材料的類型

          塑膠外殼模具的間隙與沖壓材料的類型

          2024-07-10

          廢料本質(zhì)上是形狀孔的反面圖像。也就是說,同樣的位置在相反的位置。通過檢查廢料,塑膠外殼模具可以判斷上下模具的間隙是否正確。 如果塑膠外殼模具的間隙過大,廢料會呈現(xiàn)粗糙、起伏的斷裂表面和狹窄的亮帶區(qū)域。塑膠外殼模具間隙越大,斷裂形成的角度越大,亮帶的面積越大。如果間隙過小,則廢料將呈現(xiàn)出來的小角度的斷裂表面……

          MORE
        • Factors to be considered in selecting a manufacturer for injection molding

          Factors to be considered in selecting a manufacturer for injection molding

          2024-07-03

          What should be considered when choosing a manufacturer for injection molding? Injection molding products are used in many fields……

          MORE
        • Design elements of medical device housing

          Design elements of medical device housing

          2024-07-03

          (1) Geometry and accuracy. The geometric dimension of the blister shell includes the dimension from the cutting surface to the f……

          MORE
        • Method of controlling precision in plastic injection mold processing

          Method of controlling precision in plastic injection mold processing

          2024-06-26

          The accuracy of plastic injection mold processing determines the accuracy of plastic parts, so it is very important to control t……

          MORE
        • Precautions for multi material injection molding

          Precautions for multi material injection molding

          2024-06-26

          Multi material injection molding is to integrate a variety of plastic materials with different characteristics to improve the ad……

          MORE
        • Material properties of plastic shell of power supply

          Material properties of plastic shell of power supply

          2024-06-19

          1、 Light weight led waterproof power supply plastic shell is a relatively light material, with a relative density of 0.90~2.2. O……

          MORE
        « 2 3 4 5 6 7 8 9 10 »
        Copyright: Shenzhen Zhongyuan Plastic Co., Ltd. | mold processing customized manufacturer. If you want to know the processing price of the factory, how much is it, and which is good, please contact us Yue ICP Bei No. 17060480
        一本色道久久综合狠狠躁中文| 欧美精品一本久久男人的天堂| 青青久热免费精品视频| 色哟哟哟一区二区三区| 看黄色亚洲看黄色亚洲| AA区一区二区三无码精片| 精品久久少妇激情视频| 国产美女一区二区三区视频| 人妻自拍每日更新在线| 大香蕉日韩经典在线观看| 午夜爽爽爽男女免费观看一区二区| 国产人免费视频在线观看| 日本人妻和老头中文字幕| 美女一区二区三区在线观看视频 | 自拍偷拍欧美综合图区第一页| 国产人成在线免费视频| 一区二区三区精品欧美精品| 亚洲人成色4444在线观看| 日本中文字幕在线在线| 欧美性狂猛XXXⅩXX吞精| 狠狠亚洲婷婷综合色香六月| 亚洲一区二区三区av在线免费| 成人午夜激情在线观看| 国产又爽又猛又黄视频| 亚洲国产精品久久av| 日韩有码中文字幕在线视频| 深夜福利资源在线观看| 日韩在线电影一区二区三区| 欧洲日本国产一区二区| 一区二区三区福利在线视频| 99在线精品视频在线观看| 日本精品第一视频在'| 久热精品视频在线观看| 么公的好大好硬好深好爽视频| 精品亚洲永久免费精品| 国产精品自在自线亚洲| 99久久精品国产亚洲av天| 亚洲精品色图中文字幕| 亚洲成av在线免费不卡 | 无码少妇一区二区| 日韩av高清不卡一区二区三区 |