美女露出胸让男生摸个遍_舔射插啊～在线观看女女_91视频完整版_色就色欧美

Speak Up for Safety

DDTOP Functional Safety National Tour

In May, spring is not yet over and summer is beginning.

Let us put safety in our bags and deliver it to you from a distance.

Together with functional safety experts from Instrumentation Technology and Economy Institute, DDTOP launched a nationwide technical training tour. The training lasted one month and was held in Shanghai, Zibo, Qingdao, Shenyang and Dalian. The training covered knowledge related to the <Technical Application of Functional Safety Evaluation and Design Standards> and <Technology, Commissioning and Use of Functional Safety Instruments>.

So far, the training has been completed in Dongying United Petrochemical, Northeast Refining and Chemical, East China Design Institute, Qilu Petrochemical and Shandong Sanwei petrochemical, training customers said the training content was very useful to help the daily work.