<rp id="laui9"><object id="laui9"></object></rp>

    <em id="laui9"><acronym id="laui9"><u id="laui9"></u></acronym></em>

    <em id="laui9"><acronym id="laui9"></acronym></em>
    <em id="laui9"></em>

    <tbody id="laui9"></tbody>
    <form id="laui9"><strike id="laui9"></strike></form>
  1. www.bj1n.com
    Home > About lyc > History

    About LYC

    History

    • 2015-2020
    • 2014-2010
    • 2009-2005
    • 2004-1999
    • 1998-1954

    2015

    July 21st

    8m precision slewing bearing off production line at LYC

    January 31st

    12.5 meter CNC double column beam vertical machine tool which is the largest tool in bearing industry in China located in LYC.

    2016

    Nov.10

    LYC becomes the first and only AAR approved bearing manufacturer in China

    Sep.23th

    LYC hold the overseas distributor annual meeting

    July 3

    LYC successfully supporting the worlds largest single caliber radio telescope

    Jan.26

    LYC passed the audit of AAR’s M-1003

    2017

    Oct.29

    The heaviest, biggest and highest precision split slewing bearing was successfully completed at LYC

    Sep.18

    The largest and heaviest integral slewing bearing in China is completed in LYC

    Feb.15

    The split industrial CT machine slewing bearing which is the domestic first set and the most complex structure was offline in LYC

    Feb.3rd

    LYC passed GL Wind power product certification

    Jan.14

    LYC passed CRCC On-Site Surveillance Audit

    2018

    Nov.14

    The first set of high-precision slewing bearing with helical teeth finished producing in LYC

    Jun.15

    Congratulations for LYC Class K TBU successfully assembled in USA

    Jun.12

    Main slewing bearing of shield tunneling machine manufactured by LYC for Hefei Rail Transit Line 3 past the acceptance of experts in the industry.

    May.18

    NF-AFAQ AUDIT LYC

    Jan.09

    LYC Successfully supported the First Flight Largest Amphibious Aircraft in China

    2019

    Jan.04

    the?slewing bearing with diameter of 5.44 meters was completed at LYC and passed the site acceptance by the customer. This bearing was designed for the domestic largest 520 ton ladle?turret?of?conticaster.

    2020

    June 5

    The? class E railway bearings obtained AAR approval

    May 10

    LYC supports the successful development of domestic shield machine

    Feb. 21

    The first large diameter off-axis telescope bearing in China was successfully finished from production line at LYC

    July 30

    10.3-meter-diameter integrated extra large slewing bearing was born in LYC

    Apr.27

    LYC provides Marine engineering bearings to the world's largest port machinery manufacturer

    Apr.03

    The first set of high-precision slewing bearing with helical teeth finished producing in LYC

    2014

    April 2014

    Prepare for the new factory construction,held stone-setting ceremony

    2010

    October 2010

    LYC decided to set up a joint venture with NTN in Luoyang.

    August 16th 2010

    A set of independent intellectual property rights of six row cylindrical roller slewing bearing was assembly in LYC. It filled the gap of this kind of bearing structure in China.

    July 10th 2010

    China's President Mr. Hu visited LYC

    February 2010

    LYC did a comprehensive industrial upgrade

    February 26th 2010

    China's largest bearing was born in LYC, outer diameter 6.25m, weighing 14.07 tons. It refreshed the national record again.

    February 25th 2010

    LYC has successfully developed a new type of high-nitrogen corrosion resistant bearing steel. After few performance tests, each indicators shown that meets the US aerospace material standards.

    2009

    October 19th 2009

    LYC drafted "Rolling Bearing - Speedup Cargo Railway Bearing Industry Standards" that got approved.

    February 20th 2009

    LYC has successfully cooperated with the world famous auto company--Peugeot Citroen Group of France, became the first bearing manufacturer that entered into this group in China.

    Jan 2009

    Prepare for the new factory construction,held stone-setting ceremony

    2008

    September 28th 2008

    With the Chinese astronauts safely returned to the ground, LYC support "Shenzhou Series" and "Change Series" continuously.

    September 17th 2008

    LYC New-park was established that aimed in wind turbine bearings, precision bearings, auto bearings and new R&D center.

    2007

    August 2007

    The first national set of 2.0MW wind turbine bearing was successfully6 launched in LYC, and it also accepted by customer.

    2007

    LYC drafted the "Rolling Bearing in Wind Turbines" standards that approved by National Rolling Bearing Standard Technical Committee.

    2005

    January 2005

    LYC conquer the high-speed precision ceramic ball bearing, produced two batch of bearing the reached C grade precision level.

    2004

    December 18th 2004

    Prepare for the new factory construction,held stone-setting ceremony

    2003

    July 2003

    Prepare for the new factory construction,held stone-setting ceremony

    2002

    October 2002

    LYC developed the TK-N312 high-speed wire rod mill bearing won the key national new product.

    2001

    May 10th 2001

    LYC developed slewing bearing with 16870 kg that refreshed the national weight record again.

    February 23rd 2001

    The first set of large stainless steel bearing was born in LYC.

    1999

    December 1999

    LYC has independently developed 2788/1722 wind generator yaw bearing that replaced SKF bearing.

    September 24th 1999

    The first set of sealed structure super-large rolling mill bearing was born in LYC.

    January 21st 1999

    LYC got ISO 9001 and ISO 9002 certification.

    1954

    1954

    LYC Bearing Co., Ltd founded in Luoyang Henan.

    1957

    July 24th 1957

    The first batch products of 2191 sets of auto gear box bearing was born.

    1959

    October 1959

    LYC has successfully developed the four row tapered roller bearing 10777/750 with 1.22 m diameter and 3994 kg weight that used on rolling mill.

    March 15th 1959

    China's first set of four row tapered roller bearing 777/650 with 1.03 outer diameter, 0.65 inner diameter and 1769 kg weight that used on rolling mill was born in LYC.

    1982

    September 27th 1982

    LYC has successfully developed the four row tapered roller bearing 10777/750 with 1.22 m diameter and 3994 kg weight that used on rolling mill.

    1985

    1985

    Provincial Foreign Economy and Trade Commission give the import and export right to LYC. LYC entered the international market.

    1995

    December 18th 1995

    A set of super-large bearing with 5m outer ring, 4.068m inner ring and 14131 kg weight was born in LYC, refreshed the national bearing weight record.

    1996

    1996

    LYC has successfully developed international advanced level high-speed passenger railway bearing.

    1998

    March 1998

    LYC has completed the gate series bearing used in Xiaolangdi Water Control Project. lead the rolling bearing application in China.

    January 15th 1988

    Prepare for the new factory construction,held stone-setting ceremony

    ae58老司机福利_午夜男人免费福利视频_两性色午夜视频_男人福利 人插女人骚视频播放,男人插女人骚视频在线_秋霞电影网一影音先锋 亚洲野外户外在线,顶级欧美美女洞,超碰在公开视频免费公开视频, 色123导航被窝伦理电影手机版大理寺导航放放电影网最新电影下载 手机国产视频福利久草在线福利视频在线播放久在线观看福利视频 妹妹,日夜撸,宜春院美国,马色堂影院,处夜网综合,伦理电影,快播电影 亚洲城人免费视频二区,免费视频一区二区三区,日韩香蕉免费 大黄狗导航草榴官方精选抖音福利视频在线观看极品萝莉导航 caopro超碰最新地址97碰碰在线看视频免费亚洲啪啪成人在线资源 天天看片 色综合天天综合网 小说 欧美 天天看高清影视 巨乳女教师冲田杏梨性感动漫黄色录像一美女性感写真集 春光辉荒野,日本最红的av女优,超碰在线视频网站,av女星苍井空裸照 丁香五月婷婷综合缴情/校花的好大的奶 好爽的视频/好色妻/一本道大香蕉久久 老司机电影网站永久免费视频_老司机的爱情故事_老司机福利导航 色狗TV撸到高潮导航五月婷婷六月深爱五月秋霞伦理电院网 日本AV一边做一边喷奶日本阿v片在线播放免费,一级a做爰片 舔丝足交,偷拍女人小便厕所外阴,美国av,女主播自视频在线观看 久草资源站2中文,久草福利最稳定的资源站,色和尚情网站 av亚洲男人的天堂无码免费播放,av亚洲欧美网址在线,大香一本到免费视频 天天av_天天干翘_天天色综合_天天射影院_天天色综合网 av红色社区男人的天堂av天堂_AV在线视频成人社区,男人的天堂东京热 维亚电影在线桃太郎映像嗷嗷啪神马电影午夜伦理福利 我爱AV,haose,吾爱av,奇米色,奇米网,奇米影视,奇米第四色在线影院 青青草免费高清视频在线观看,日本忆春院,久热在线播放中文字幕 天天操,天天射,天天好逼网,天天色综合网亚洲,另类欧美性交电影 第四色成人电影-快播电影-伦理电影天堂网色无极,男人的天堂东京热! 我爱AV,haose,吾爱av,奇米色,奇米网,奇米影视,奇米第四色在线影院 在线自拍东京热一本道,-日本av在线观看,-波多野结衣大香蕉播放 少女自拍无码 超碰超碰超碰超7 色欧洲狠狠爱 伊人综合伊人情人网 寂寞少妇老师,艳妇素琴在线看,日本刮毛做爱图片,我爱姐姐c0m,人人澡 久久快播电影,久久成人,久久爱,成人动漫快憣,婷婷五月俺去也人妻 色无极影院亚洲专区人人香蕉亚洲成人手机在线动态图后入 看真人视频一一级毛片,在线毛片片免费观看_免费网站看v片在线 欧美影院,全集网,好莱坞电影,欧美视频,欧美在线影院 大香蕉伊人在线168,晚上穿胸罩睡觉好吗,狠狠干欧美2016最新版 色爱综合网欧美Av,色姐妹插姐姐,色姑娘综合站,姐妹综合久 美女视频免费是黄的手机看片1024免费新版2018午夜影验区大屁股影视 美女视频黄频大全视频, 热99re久久精品,免费A级毛片,久久99热大香蕉免费 狼人香蕉香蕉在线28,狠狠色很很鲁在线视频,国内偷拍在线精品 2019天天色,天天干,天天操,天天射,天天好逼网,天天色综合网 日本大哥_AV在线视频成人社区,男人的天堂东京热 酒店偷拍做爱,夫妇爱爱自拍,处女逼逼自拍15p,成人在线自拍偷拍 酒店偷拍做爱,夫妇爱爱自拍,处女逼逼自拍15p,成人在线自拍偷拍 天天日免费观看视频一1_一级a做爰视频免费观看_噜噜在线a观看 亚洲综合有码视频高清,日本做爱视频,国产av在线观看就快播-俺来也 日日干夜夜操 |日本色情|av女优|成人av|日本av|好av视频 男人天堂,激情/黄色/成人/淫色/色情网_免费视频_三级片_黄色视频 av高清电影 | 成人电影 亚洲无码 欧美高清 东京热 在线视频 日本女优 无码av高清亚洲偷窥白拍_日本一级特黄大片_日本毛片免费视频观看 私人高清影院天天草日日干左右视频免费人成网站在线观看 大香蕉碰撞520,我老婆被别人内射,欧美大胆黑鲍艺术,大香蕉国产伊人久草av 天天影视爱色综合视频制作软件免费48种姿势的大全动态图成人网首发 免费视频在线观看国产-亚洲国产情侣偷拍系列在线播放 天天色-www.色小姐,狠狠干,狠狠_干,久久综合,就要撸,我要色综合 性感韩国媚娘写真,狠狠鲁网主页,欧美av美女性爱,最逼真床戏 我要干逼福利社区导航苹果电影完整版视频在线观看爱我影院 52avav我爱aⅴ在线观看-老司机在线国产-av12av在线日本av视频 亚洲 欧美 国产 综合|亚洲 日韩 国产 有码|一本到在线视频观看 最新欧美伦理电影_三级片_午夜剧场_韩国伦理片_手机视频免费在线观看 美女视频免费是黄的手机看片1024免费新版2018午夜影验区大屁股影视 第四色色人阁九月天五月狠狠色你的网站名成人伦理电影 欧美限制节情色电影标签,初中女生自拍裸照,大香蕉碰碰视频 亚洲AV 欧美 卡通 动漫_欧美另类图片区视频一区_欧美 制服 av红色社区男人的天堂av天堂_AV在线视频成人社区,男人的天堂东京热 奇米网_80s手机电影网_日本极品a级片_欧美特级限制片2017 超碰下载,在线大香蕉观看视频在线,快播A片免费看的,超碰在线观看地址97 无套内射漂亮空姐,大香蕉伊人在线20,成人快播手机板下载,偷拍野战性交图 福利视频_成人福利视频_国产福利视频网站_手机福利视频影院 自拍区偷拍亚洲视频_7,Tav国产自拍视频在线_国产偷拍99线观看 深爱激动情网婷婷完整日本特级毛片茄子app视频福利 欧美性色黄视频在线_黄三级100种日本免费_国产四级高清电影 不卡的在线AV网站,日本av不卡在线观看,免费大片av网站 欧美AV_AV在线视频成人社区,男人的天堂东京热_高清无码中文 一级a啪啪啪视频在线观看免费,啪啪男女视频免费观看,天天啪久久热 色人格,色人格影院第四色,色人格影视,色人格影院第四色先锋 高清国语自产拍_黃色高清三级带_美美女免费高清毛片视频 青青新免费观看新69影院視頻,新69歐美情色,新69國產自拍偷拍 久久爱15在线-久久爱视频在线观看视频性生活心得性爱姿势做爱指导 寂寞少妇老师,艳妇素琴在线看,日本刮毛做爱图片,我爱姐姐c0m,人人澡 青青草国产播放,中文字幕在线播放2018,爱爱视频在线观看免费 干逼小说慕容冲导航01AV视频久草社导航_西门庆插逼导航 酒店偷拍做爱,夫妇爱爱自拍,处女逼逼自拍15p,成人在线自拍偷拍 天天爱搞搞狠狠爱 天天射天天日天天舔 狠狠在线插口日日干 超碰最新类别 亚洲三级在线av 亚洲在线av876 色情网址狼av 妹妹,日夜撸,宜春院美国,马色堂影院,处夜网综合,伦理电影,快播电影 欧美AV好骚综合1-好骚综合-巨骚综合-色爱综合网欧美Av_不卡的av日本 播电影_快播伦理电影_最新好看的快播电影在线观看-快播看片网 爱色影_爱色哥_爱搞搞_爱色影网站_亚洲做性视频在线观 快播视频在线观看74福利导航免费电影播放器色网在线视频 色和尚在线伊人香蕉,亚洲在线大香蕉网久久,伊人香蕉久久网 久草在线新免费我爱干色天天综合网视频网站,狠狠擼Av 亚洲做性视频在线观看一级做爱视频1024永久免费香蕉视频99视频精品 春阁无码区护士12p 97色春阁在线 97色春阁97色大姐 大香蕉伊人在线75欧美,亚洲骚五月在线视频,女老师的肛交在线阅读, 国产情侣偷拍视频100,亚洲自国产拍偷,在线亚洲中文精品第1页 日本av不卡在线观看,不卡的在线av网站,不卡的av日本影片在线 天天啪_天天啪久久99re热在线播放_天天啪在线影院院 琪琪色原网站影院,琪琪色影院,琪琪色原网站在线观看,夜夜爽天天啊 天天色_天天干_天天操_天天射_天天好逼网_天天色综合网 69影院_在线高清中文字幕电影_高清特黄a大片_热久久99亚洲精品 有强暴剧情的三级电影,把大鸡巴插入姑姑阴道,斯利安dha乳钙粉 成人色导航,10万AV在线,日本在线观看所有av网站,一个色网址的导航 撸起来狼人干综合影院福利在线观看www.色小姐青青草小萝莉资源 新天天影院視頻,新69歐美情色,新69國產自拍偷拍,新久草日本無碼,新久草小說 我爱AV,haose,吾爱av,奇米色,奇米网,奇米影视,奇米第四色在线影院 去干就去吻 免费高清无码在线亚州偷拍 色情帝国 甜性涩爱在线看,亚洲东方av线在线播放,街头偷拍女人臀部 日本av电影片段,97超碰 亚洲视频在线观看,我躺床上去,插妈妈亚洲在线 操在线观看_就干去_人人操逼人人摸人人碰_就去吻 就去干 久草久草视频免费新时代的视觉体验久草在线新免费观看久草逼 成 人 国产系列,最大的成人网站美国成年性色生活片 CaoPorn福利视频小优视频官网亚欧在线四虎永久免费地址 啪啪啪视频在线观看免费,啪啪男女视频免费观看,天天啪久久热全部视频 日本色情片明星的裸照,我的真实乱伦故事,公交车上偷拍裙内风光 日本妹最诱惑裸体,厕奸高材生 狠狠干,gg14超碰,在线免费日本av 偷拍香港女大学生洗澡 超碰视频在线公开观看视频 昨晚遇色狼摸下面 色和尚在线伊人香蕉,亚洲在线大香蕉网久久,伊人香蕉久久网 红色av欧美自慰,教师涉嫌性侵学生,在线播放最新日韩av,日本性爱小姐内射 91国产自拍米奇777俺去啦欧美情色高清阿V片久久免费热在线精品 日本av不卡在线观看_不卡的无码高清的av_不卡的av日本_国产片高清无码在线 狠狠干久久草,操逼操,2017大香蕉最新免费,一本到在线高清观看 av视频在线观看,av片下载,av快播电影,av电影在线观看 私人高清影院天天草日日干左右视频免费人成网站在线观看 色爱综合网欧美Av 欧美AV_牛B叉电影_我看逼,成年人电影网站 国产高清情侣视频网-国产情侣自拍偷拍-国内偷拍国产情侣2018 爱爱小说,色小说,爱爱小说,色小说,色--情乱--伦小说,专注色--情乱--伦小说 清美女视频亚洲免费_日本一级特黄大片_免费网站看v片在线 青青草在线视频网站日本不卡高清免v天天干免费视频在线观看久久 米奇电影网,奇米影视盒,米奇影视,米奇网站,777奇米影视第四色,777米奇影院 大黄狗导航草榴官方精选抖音福利视频在线观看极品萝莉导航 色无极影院亚洲专区人人香蕉亚洲成人手机在线动态图后入 女星潜规则偷拍图 偷拍美女小便艺术 欧美色图自拍偷拍强奸乱伦 欧美AV_AV在线视频成人社区,男人的天堂东京热_高清无码中文 一级a爱片免费视频观看,免费国产一级av 片,日本一级特黄大片免色 巨乳中文无码亚洲,引诱我的巨乳女邻居,巨乳高清版在线,邻居巨乳正在播放 伊人干狼人色综合,香蕉伊人影院在线观看,婷婷五月俺去也人妻 可以免费观看的av毛片,欧欧美一级高清,a片在线观看,中文字幕在线 亚洲欧美中文日韩视频,在线日韩日本国产亚洲,日韩成人,亚洲欧美中文日韩v在线 亚洲人成电影网站免费,亚洲黄色图片,黄色图片可爱图片,美女写真 日本成人电影_av天堂网站avtt2017_超碰国内新上传视频_米奇第四色色情 亚洲阿v大香蕉2017天堂小老弟影院亚洲阿v大香蕉2017天堂天天日久久 日韩一级毛片欧美一级电影_在线播放免费人成视频 亚洲第一狼人堂大香蕉好叼妞视频久久热国产偷拍,手机看片福利盒子日韩 AV天堂网/影音先锋/快播电影资源,快播成人a,免费国产一级av 片 超碰成人妻出轨,超碰在线视频 97超碰线免费观看视频 ,亚洲人成电影网站 手机国产视频福利久草在线福利视频在线播放久在线观看福利视频 操在线观看_就干去_人人操逼人人摸人人碰_就去吻 就去干 国产情侣自拍在线观看_啪啪在线播放_啪啪视频在线_啪啪视频在线观看 俺去啦_俺来也_anquye_俺也去电影网_www.俺去也.com影院 色爱综合网欧美Av 欧美AV_牛B叉电影,av欧美高清观看 真人视频一一级毛片,日本一级特黄大片97人人_爱播速影院