亚洲色情一区二区在线,精品国產理伦女人UV6,九色丝袜视频自拍啪啪,国产精品久久久久无码AV动图,亚洲AⅤ无码日韩AV中文AV伦
0731-82716163

Changsha Granken: Ten years of sheet metal surface treatment technology

Column:Company News Time:2019-09-20 Browsing volume: 1731

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.

免费无套内谢少妇毛片A片软三 | 国产精品坐爱视频 | 9l视频白拍9色9l视频开放 | 国产黄色视频在线观看 | 一级黄色片A片内射 | 国产精品99久久久久久久久久久久 | 少妇高潮毛片免费观看A京东热 | 羞羞视频网站在线观看 | 国产天美传媒性色电影在线观看 | 91欧洲精品久久久蜜桃 网站 | 国产亚洲A片无 码导航 | 中文字幕第一页一区二区 | 毛片在线看精华网 | 成年女性午夜爽爽爽视频 | 91精品人妻和黑人 | 7777影院色情 | 黄色A片无码视屏 | 黄色网址在线免费观看 | 久久成人免费影视 | 小辣椒成人aV一区二区 | 国产69精品久久久久久久久久久久 | 久久婷婷五夜综合色 | 国产99在线观看 | 欧美熟妇一区二区三区仙踪林 | 少妇高潮灌满白浆毛片免费看动漫 | 亚洲精品天堂在线视频 | 成人性内交视频免费 | 成年在线观看视频 | 极品少妇扒粉嫩小泬视频麻豆 | 寡妇亲子伦一区二区三区四区 | 色窝窝无码一区二区三区成人网站 | 亚洲一区免费在线 | 被后入在线观看国产 | 影音先锋在线69 | 欧美 自拍 偷拍 人妻 | 成人A片产无码免费奶头动态图 | 成人免费无码婬片在线 | 日本三级强伦轩中文字幕高清 | 精品久久久久成人码免费动漫 | 最近2019中文字幕大全视频10 | 国产成人a亚洲精品 |