国产迷奸在线观看_日韩欧美淫一区二区_網友分享欧洲无码中字心得_日本特a黄大片_日韩欧美操逼视频_亚洲精品国产老牛_波多野结衣午夜电影_午夜无码视频這裏_高清无码中文字幕全国等优质内容!_亚洲三级片视频

Home News & Events Recent News

News & Events

Insist on innovation and development, and listen to insights and voices from various technical fields around the world.

Recent News

Marketing Event

Media Interaction

2021-11-01

Advanced Equipment For the Country, DDTOP Performs Careful and Detailed Work

Photo/ General Manager Zhang Yiding with the completed 18m calibre Venturi flowm…

2021-10-08

DDTOP Standardization Project Approved as “Provincial Pilot”

Standardization pilot demonstration is to promote the successful experience achi…

2021-09-18

DDTOP Group Attendance at Xiamen International Fair for Investment & Trade

On 8th -9th September 2021, Ms Zhang Yiding, General Manager of DDTOP Group, att…

2021-09-18

DDTOP Inspection and Maintenance

On August 27, 2021, China National Petroleum Corporation Fushun Petrochemical Co…

2021-09-18

DDTOP Group Was Selected As One of the “2021 Standardized Good Behavior Enterprises” List

Recently, Liaoning Provincial Market Supervision Administration released the …

2021-09-15

Great Success for Overseas Business Department-A Big Order from Schlumberger

In August 2021, the Overseas Business Department successfully won its first orde…

您的瀏覽器當(dāng)前寬度低于1100px;請使用1300px以上寬度訪問。