美女又爽 又黄 视频,蜜桃人妻Ⅴ一v二精品视频,91丨九色丨国产丨人妻在线,中文字幕一区二区三区在线观看,国产高潮一区二区三区久久久久久
0731-82716163

Changsha Granken: Ten years of sheet metal surface treatment technology

Column:Company News Time:2019-09-20 Browsing volume: 1788

10 years ago, Granken Machinery (formerly known as Xixiang) undertook the SANY Heavy Industry Sheet Pretreatment Line project. It took 4 months from design to production and installation and commissioning. The first start-up process of steel plates attracted more than 10 Sany technical, quality and production management personnel. The first steel sheet has a surface treatment level of Sa3.0 (total quality inspection report), and it has passed the acceptance upon startup. Today the device still plays a major role in the field. The main configuration and parameters of the equipment are as follows: the thickness of the steel plate is 3-8mm, the width is 1800mm, the length of the steel plate is 12m, the processing speed is 5-7m / min, the material is automatically loaded and unloaded, and the shot blasting and painting are completed in one shot. Based on this, after years of continuous technical research and development, the company's equipment has been able to handle 0.3mm stainless steel plates without deformation, which has won praise from customers.

有限责任公司欧美日韩另类夫妻 | 人妻少妇av中文字幕乱码牛牛 | 国产AV一区二区三区无码专区 | 波多野结衣乳巨码无在线观看 | 影音先锋女人aV鲁色 | 日韩人妻无码一级毛片欧美潘金莲 | 明里 无码一区二区三区 | 国产精品秘 福利姬视频小鹿 | 国产亚无精久久久久久无码 | 国产精品无码久久久久2028 | 国产婬妇 视频,日本 | av高清无码在线观看 | 无码A片全身按摩AⅤ | 少妇一级婬片50分钟 | 超碰爆艹乱伦黑人巨吊艹大逼 | 日本性视频一区二区 | 国产日韩在线观看porn | 91无码偷拍精品一区二区三区 | 精品秘 无码一区二区三区 亚洲国产精品国自产拍久久 | 欧美老婆婆妈妈性爱激情一区二区 | jiujiuchengren视频 | 无码黄毛片视频浴室 | 操出白桨在线播放 | 蜜臀无码破解凹凸视频 | 日本免费一区二区三区四区五六区 | 国产麻豆剧传媒精品国产AV | 国产一级特黄aaa大片 | 91AV变态在线视频 | 夜夜爽妓女8888视频免费观看 | 精品人妻中文无码AV在线 | 91高清爆乳大胸揉捏在线播放 | 亚洲无码在线视频观看 | 欲www国产精品久久久 | 无码人妻丰满熟妇区蜜臀涩图 | 久久久久久九九99精品 | 亚洲欧美日韩在线不卡 | 国产农村妇女毛片精品久久 | 亚洲AV无码破坏篠田优 | 久久精品人人人人人人 | 奶大交一乱一乱视频在线观看 | 无码人妻久久一区二区三区 |