亚洲三级免费-亚洲三级视频在线观看-亚洲三区在线观看内射后入-亚洲三区在线观看无套内射-亚洲骚片-亚洲色av性色在线观无码

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.

Bold Group

Forturetools

Yucheng Diamond

BYD Abrasives

YuCheng

Malaysia
ADD: No.10 Dongqing Street,
High&New tech Development Zone.
Zhengzhou, Henan, China.
Postal code: 450001 E-mail：info@bold68.com
Phone: 0371-67662016 86162612
?Copyright 2004 Zhengzhou Bold Abrasives Co., Ltd. All Rights Reserved.
Leave Message
Name
Telephone
E-mail/QQ
Message
主站蜘蛛池模板： 久久精品女人天堂| 国产无套视频在线观看香蕉| 欧美性生活网站 | 伊人网伊人影院| 欧日韩视频777888| 四虎永久在线精品国产馆v视影院 四虎永久在线精品国产 | 四虎国产成人免费观看| 亚洲欧美在线播放| 国产亚洲精品久久久久久午夜| 日韩专区在线播放| 中文字幕视频二区| 日韩毛片免费视频| 亚洲欧美精品成人久久91| 男女草逼视频| 四虎影视免费看| 丁香六月欧美| 清冷双性被cao的合不拢腿| 窝窝女人体国产午夜视频| 91视频色| 日日摸夜夜摸无需播放器| 亚洲综合第一区| 青青草国产免费国产| 亚洲一区二区视频| 热久在线| 中文字幕成人免费高清在线| 免费大片a一级一级| 色综合五月婷婷| 国产成人综合日韩精品婷婷九月| 深夜视频在线看| 国产色网| 色综合久久久久久久| 高颜值大长腿美女啪啪| 日韩精品一区二区三区中文版| 中文字幕亚洲无线码在一区| 日本一区二区三区在线 观看网站| 亚洲成a人片在线观看中文!!!| 国产三级在线视频观看| 婷婷综合缴情亚洲狠狠图片| 免费国产不卡午夜福在线| 亚洲一级毛片免观看| 日韩a在线播放|