视频免费1区二区三区 I 久久一区av I 日韩超级毛片 I 久久精品免费一区二区 I 午夜精品成人一区二区视频 I 天天操天天操天天操天天操 I 四虎亚洲精品高清在线观看 I 91婷婷在线观看 I 伊人老司机 I 制服丝袜国产av无码 I 在线看逼 I 精品淑女少妇av久久免费 I 国产成人无码一区二区在线观看 I 女人色网 I 女人被弄到高潮的免费视频 I av短片在线观看 I 一区二区三区无码不卡无在线 I 超清中文乱码一区 I 老色鬼网站 I 日本久久爱 I 嫩草在线视频 I 久久www免费人成_看片中文 I 一区二区三区欧美在线观看 I 亚洲女教师丝祙在线播放 I 国产精品免费看jizzjlzz I 全部av免费在线观看 I 精品网站www I 和搜子居同的日子2hd高清看 I 日韩一区欧美一区 I 成人免费观看www的片 I 樱花草在线社区www日本影院 I 国产丝袜精品视频 I 婷婷中文字幕 I 影音先锋 男人 I 日本女优天堂99伊人

  • 1
  • 2
  • 3

PRODUCT CENTER

Contact us

Dongguan Shiyan Precision Instrument Co., Ltd

Address: No. 23 Xingyuan Road, Houjie Community, Houjie Town, Dongguan City, Guangdong Province

Phone: +86 0769-85960096

            +86 0769-85990016

Fax: +86 0769-85990016

Miss Li: +86 18122859758

Mr. Xie:+86 18826890096

Website: www.dsxo.cn

Email: dgsy17@163.com

微信公眾號

About Us

MORE>>

Dongguan Shiyan Precision Instrument Co., Ltd

Dongguan Shiyan Precision Instrument Co., Ltd. is a precision instrument manufacturer that integrates research and development, production, sales, maintenance, technical support, and other comprehensive services.

Videos

MORE>>
  • 設備展廳
    設備展廳
  • 設備展廳
    設備展廳
  • 中國國際橡塑工業展覽
    中國國際橡塑工業展覽
  • 上海國際橡塑工業展覽
    上海國際橡塑工業展覽

Intimate after-sales seryice


Purchasing and technical guidance, allowing you to choose more convenient and reduce manual assembly, and lower processing costs

Quality assurance


To meet the needs of domestic and foreign customers, 

our products comply with international standards such as 

ISO, SATRA, GB, BSASTM, DIN, JLS, EN, etc


Nears of production experience

Our company has many years of production experience, and our technology is reliable. We carefully make every product, which is worthy of your trust

Scheduled delivery

One-on-one service, real-time tracking and reporting, delivery time 

guarantee for multiple cooperative logistics companies, 

to meet your needs