人人妻人人澡人人爽国产-免费无码毛片一区二区三区a片-国产极品白嫩精品-欧美牲交a欧美牲交aⅴ免费下载-亚洲日韩∨a无码中文字幕-孩交精品xxxx视频视频
中文
English
HOME
About
Products
Engine industry
Gear Industry
Bearing Industry
Cutting Tool Industry
Iron and steel Industry
Photovaltaic Industry
Aeronautics and Astronautics Industry
Glass Tools
Superhard abrasives
General bonded abrasives
News
Company news
Industry news
Contact Us
WHO WE ARE
We are professional diamond and CBN manufacturer,
Making Efforts To Press Ahead is our Philosophy,
Achieving sustainable transmission is our goal.
Company display
Factory display
Workshop environment
Office environment
Company environment
Development History
Development History
Year 2003
the first set of resin bond CBN double-side surface grinding wheel was developed.
Year 2004
the wear-resistant high speed hydrostatic bearing grinding wheel was successfully put into the market.
Year 2004
Bold Vitrified CBN grinding wheel specialized for miniature bearing industry was successfully developed.
Year 2006
ISO9001 certification were passed as the first in this industry.
Year 2006
Zhengzhou Forture Tool Co., Ltd. Was established.
Year 2007
Bold metal bonded diamond grinding wheel was successfully developed.
Year 2007
High abrasion resistant glass grinding wheel was successfully put into the market.
Year 2008
Shanghai branch of Bold was established.
Year 2008
diamond grinding wheels with high sharpness grinding PCD tools were successfully put into the market.
Year 2008
diamond grinding wheels with high sharpness grinding PCD tools were successfully put into the market.
Year 2009
Bold was awarded the title of Henan hi tech enterprise.
Year 2009
we successfully developed a series of grinding wheels for monocrystalline silicon rod grinding in photovoltaic industry.
Year 2010
"Bold" trademark was awarded the title of "national famous brand".
Year 2011
we set up the research and Development Department of sophisticated abrasives.
Year 2012
Bold won the honorary title of "Henan province credit construction demonstration unit".
Year 2014
special silicon wafer grinding wheels for photovoltaic industry were developed and produced, which filled the gaps in this industry in China.
Year 2014
special grinding wheel for PV(photovaltaic) glass was developed.
Year 2014
high grade electroplated diamond (CBN) abrasives were developed and put into operation.
Year 2015
Bold Shanghai Pudong cutting tool branch was established.
Year 2015
The third factory of bold was established.
Year 2016
Xinxiang BYD abrasives Co., Ltd. Was established.
Year 2017
Xinxiang Boruite Super Material Co.,Ltd. Was established.
Year 2017
Shanghai YuCheng Diamond abrasives Co.,Ltd. Was established.
Year 2017
Xinxiang BSD abrasives Co., Ltd.was established.
Year 2018
Xinxiang Boruite Super Material Co., Ltd.was established.
Until 2018
Bold Group has owned 57 national patent technologies.
Quick navigation:
About Us
Products
News
Contact Us
Bold Group
Forturetools
BYD Abrasives
Malaysia
ADD: No.10 Dongqing Street,
High&New tech Development Zone.
Zhengzhou, Henan, China.
Postal code: 450001 E-mail:liu@bold68.com
Phone: 0371-67662016 86162612
?Copyright 2004 Zhengzhou Bold Abrasives Co., Ltd. All Rights Reserved.
Leave Message
Fold Window
Name
Telephone
E-mail/QQ
Message
submit
主站蜘蛛池模板:
少妇放荡的呻吟干柴烈火免费视频
|
欧美三级午夜理伦三级小说
|
国产无套精品一区二区
|
国产69精品久久久久999小说
|
女人高潮被爽到呻吟在线观看
|
97人妻人人揉人人躁人人
|
久操国产在线
|
色丁香婷婷综合久久
|
www.82gan.com
|
香蕉视频在线看
|
www插插插无码视频网站
|
狠狠色狠狠色综合久久第一次
|
少妇被躁爽到高潮无码久久
|
羞羞视频免费网站在线看
|
亚洲国产成人一区二区精品区
|
一级片在线视频
|
国产aⅴ
|
国产乱子伦精品视频
|
www亚洲一区
|
男女真实无遮挡xx00动态图120秒
|
国产成人a人亚洲精品无码
|
热99久久
|
日本电影一区二区三区
|
黄网站在线播放
|
五月网站
|
国产成人19禁在线观看
|
色中色综合网
|
激情综合色五月丁香六月欧美
|
妖精视频永久在线入口
|
男女后式激烈动态图片
|
一道本不卡视频
|
欧美一级片手机在线观看
|
黑人大荫蒂老太大
|
婷婷黄色
|
少妇久久久久久被弄高潮
|
青草视频网站在线观看
|
91高清网站
|
成年网站免费观看
|
欧美一级色片
|
国产成人精品无码一区二区老年人
|
日本高清香蕉色视频在线观看
|