EEUSS鲁片一区二区三区,香港三级精品三级在线专区,丰满熟妇乱又伦,亚洲AV永久中文无码精品综合

Welcome to the official website of Dalian Haneda Steel Tube Co., Ltd.
National Service Hotline
0411-86294910
News
Contact Us
To learn more about us, please call
0411-86294910
Or leave us a message
Consult
News
Current Page:Home > News > News
Komatsu excavator hydraulic piping experiment succ
Source:Haneda Steel   Views:   Date:2021-07-23

      After 2 years of unremitting efforts and nearly a hundred experiments since 2015, the hydraulic piping products used by Komatsu excavators have finally been successfully tested and put into mass production. At the same time, the company has also passed Komatsu’s strict factory approval and has become Qualified suppliers.