久草av在线观看_日本a级视频免费_久草视频A片_一级免费黄色录像生活片

久草av在线观看_日本a级视频免费_久草视频A片_一级免费黄色录像生活片

久草av在线观看_日本a级视频免费_久草视频A片_一级免费黄色录像生活片_在线毛片一区二区三区_欧亚性爱免费网站_免费看黄色三级A片

  • <tr id="npy3x"><cite id="npy3x"><mark id="npy3x"></mark></cite></tr>

    Welcome to Shenzhen STR Hardware Products Co., LTD.

    1.  
    Technical Article

    Home  -  Service  -   Technical Article

    Small coups for precision machining

    In the daily precision machining process, I encountered a lot of small problems, and then they worked through the efforts of others to solve these problems. Then some thoughtful employees summed up these small problems to solve the problem. come out. Today, we will share some tips on precision machining in the larger home. You can refer to it:

    1. When the pulley is driven, the pulley often slips between the pulley and the axle, and a series of sockets are drawn on the axle with a 15-18mm drill bit to form an adsorption force to prevent slippage.
    2. For the case that the workpiece is first positioned and then clamped, but for a workpiece, first clamp and then position, because the workpiece will be deformed when clamping, so it should be clamped and then positioned.
    3. Remove the jaws of the vise, and machine the two M4 threaded holes. Two steel plates with a thickness of 1.5 mm are clamped to the jaws, and the aluminum rivets are riveted with a hard brass plate with a thickness of 0.8 mm. Fasten to the jaws with M4 countersunk screws to form a durable soft jaw that also protects the hardware from being pinched and interchangeable.
    4, using a magnet to absorb small parts (fees) is not convenient to suck and take, you can suck an iron plate under the magnet, not only can suck a lot of small pieces, but also pull the iron plate open, small pieces will automatically dump into the collection immediately Inside the box.
    5. When the hex wrench is short and can't be stressed, the tube with the inner diameter slightly larger than the wrench can be inserted into the slot from a section of the milling slot, which can be regarded as a long handle.

    Copyright 2018-2020 Shenzhen STR Hardware Products Co., LTD. All Rights Reserved.
    Add:Building 8, Songgang First Industrial Village, Songgang Street, Bao'an District, Shenzhen,China.
    Contact:Mr.Lu 13714851595 Tel:0755-29891116 Fax:0755-27673791
    Email:luliangguo@szstorge.com
    久草av在线观看_日本a级视频免费_久草视频A片_一级免费黄色录像生活片

  • <tr id="npy3x"><cite id="npy3x"><mark id="npy3x"></mark></cite></tr>

    国模少妇无码免费送| 性爱av.com| 成年人免费在线| 毛片女人黄色| 一本av网站| 夜晚视频男女片网站| 婷婷色色五月AV| 亚洲AV福利| 777777成人网站| 大香蕉aV免费在线观看| 777精品一区| 亚洲色码一区二区| av骚久热| 操日本女人逼A片| 日本一二三区不卡| 日本色图视频播放| 97色色干干| 青草AV影视| 黄色美女一级片| av色在线导航| 精选无码av影视| 制度丝袜综合| 五月天激情中文字幕AV| 成人女同av| 久草视频免费| 成人性爱视频69| 若怒超碰| 久操97| 亚洲无码Av在| 在线视频日韩91| 超碰免费人人干| 无码91| 日韩欧美黄| 黄色片在线观看视频| 六月天激情| 久久av网站| 九九黄色网| 免费A级簧片| 亚洲无码一区二区不卡| 国产一级婬片A片视频| 国产精品28|