少妇人妻陈艳和黑人教练,真人做人试看60分钟免费视频 ,久久久久99精品成人片欧美,久久精品人人做人人爽97

About US

        Dongguanshi zhangli machine fittings co.,ltd. is a thermal spraying factory located in the beautiful Humen town Dongguan city China,established in 1998,specializing in the production and repairing of the machinery part with thermal spraying coating in wire & cable,textile & chemical fiber,metallurgy industries,printing and packaging,canned food industry. 
 
        We have the state of the art spraying equipment : the detonation spray coating series, HOVF spraying series,the wire flame spraying series,the rods and bars flame spraying series and so on.they mainly apply in regeneration of the professional mechanical fitting function,improve the wear-resistance,anti-corrosive,erosion resistance,high temperature proof and conductor adiabatic etc.The mental materials for the spray coating mainly are : chromium oxide ceramics,aluminum oxide,titanium oxide,tungsten carbide,nickel base,cobalt base and so on.we use different material and powder according toclients requirements. 
 
        In order to provide more satisfactory service to customers and also to improve the quality of products,we've cooperated R&D with colleges and universities positively,for the newest and highest technician of spraying and coating.Furthermore,we have brought in the new coating technician of sintering of Tungsten carbide and Nickel powder on the surface of base material from Germany in 2014,which weed out the traditional hand operation fire flame spraying,and obtained the technician of better rigid and stable coating.
 
        Aim to improve the products precision,and provide better service to customer,we have equipped with digital controlled lathe center,internal and external grinding machine,milling,drilling,dynamic balance equipment.We have passed the ISO9001:2008 quality management system certification so that we can devote ourselves to offering more superior products and service.
 
        The surface coating being with high hardness,smoothness and strong binding of the base material,which is of great importance to the industrial level improving,energy saving and the environment protecting.
 
        Owing to our years of endeavor and research,now our products are applied in many domestic machinery field,within which the tungsten carbide and the ceramic machinery accessories were exported to more than 30countries,and were very well-received among European and southeast Asia countries.
 

 




Telephone

0769-85415700

function

Price

quality

service

Wechat sweep

Mobile phone sweep

亚洲国产成人久久综合区| 精品一卡2卡三卡4卡三卡免费| 中文字幕亚洲综合久久综合| 亚洲精品成人av观看| 无码毛片一区二区三区本码视频| 国产婷婷一区二区三区| 亚洲日韩欧美一区二区三区| 精品乱人伦一区二区三区 | 成年女人片免费视频| 亚洲AV无码一区二区三区观看| 香港奇案之屯门色魔| 亚洲日韩一区二区一无码| 亚洲国产婷婷综合在线精品| 亚洲VA久久久噜噜噜久久无码| 久久久久久精品免费免费直播| 亚洲 日韩 欧美 成人 在线观看 | 国产成人无码A区在线观看视频 | 日韩在线 | 中文| 国产真实乱子伦精品视频| 亚洲老妈激情一区二区三区| 中文字幕乱码中文| 中文人妻熟妇乱又伦精品| 无码熟妇人妻av| 婷婷久久综合九色综合97最多收藏 | 少妇人妻在线无码天堂视频网 | 久久久久人妻精品一区| 又摸又揉又黄又爽的视频| 国产成人一区二区无码不卡在线| 亚洲AV乱码专区国产乱码| 国产在线精品国偷产拍| 午夜精品久久久久久久99热| 国语自产偷拍精品视频偷拍| 国产99视频精品免视看9| 精品综合久久久久久97超人| 久热这里只有精品视频6| 天堂а√中文最新版在线| 日产精品久久久一区二区| 放荡大屁股少妇高潮喷水| 99久久99精品久久久久久| 国产av电影区二区三区曰曰骚网| 国产精品99精品无码视亚|