Shandong China Coal Import & Export Co., Ltd.

A new coronavirus pneumonia epidemic has deeply affected the hearts of the people throughout the country.

The short dowty retarder products use a large number of mature technical principles, which have been successfully developed through careful design and calculation and scientific tests and tests. Witho

At the beginning of the new year, sudden pneumonia infected by a new coronavirus raged all over China, affecting everyone's heart.

There are certain safety requirements for dowty retarder. Let me introduce them below.

In order to comprehensively summarize the various tasks of the Group in 2019, promote the implementation of the Group's 2020 business goals and tasks, and better assist the development of the Group,

TDJ-302 dowty retarder is a speed-adjusting tool that can automatically control the speed of vehicle roll-out without external energy. The following is an overview and use of TDJ-302 dowty retarder.