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

久久99精品久久久久久野外| 少妇与子乱在线观看| 老司机带带我在线精彩免费| 中文字幕乱码一区二区免费| 人人做天天爱夜夜爽| 7777精品伊久久久大香线蕉| 久久国语露脸国产精品电影| 色翁荡息又大又硬又粗视频| 国产精品亚洲片在线| 少妇下面好紧好多水真爽播放 | 国产天堂亚洲国产碰碰| 久久久亚洲精品无码| 99久久国产综合精品麻豆| 亚洲精品高清无码视频| 亚洲一区二区三区香蕉| 日本亚洲欧美在线视观看| 三年片在线观看免费大全| 亚洲成色www久久网站夜月| 一本之道高清乱码少妇| 亚洲熟妇无码乱子AV电影| 国产精品爽爽V在线观看无码| 黄色a级国产免费大片| 国产白袜脚足j棉袜在线观看 | 我和岳乱妇三级高清电影| 少妇富婆高级按摩出水高潮| 亚洲理论在线A中文字幕| 久久99人妻无码精品一区二区| 精品人伦一区二区三区潘金莲| 亚洲av无码专区亚洲av桃| 日本高清视频wwww色| 少妇又紧又深又湿又爽视频| 无码av免费一区二区三区试看 | 2021亚洲卡一卡二新区入口| 久久99国产精品久久| 欧美激情内射喷水高潮| 无码国产69精品久久久孕妇| 97精品人人妻人人| 在熟睡夫面前侵犯我在线播放| 中文字幕在线中字日韩| 免费观看亚洲人成网站| 天天躁日日躁狠狠躁日日躁|