【1】Cleaning Use solvent and emulsion to clean the surface of high-pressure boiler tubes in order to remove the oil, grease, dust, lubricant and similar organics. However, it can not remove the rust, oxide scale, welding flux, etc. from the surface of high pressure boiler tubes. Therefore, this method can only be seen...

The pipeline is the equipment consisting of the pipe, the pipe fitting and the valve, and is used for transporting gas, liquid, or fluid with solid particles. Usually, after being pressurized by blowers, compressors, pumps and boilers, fluid will flow from the pipes' high pressure parts to the low pressure parts, and...

On February 11th, CPP shielded tunnel has reached 300 meters for second China-Russia Oil Pipeline, which speed up the engineering construction. In order to construct second China-Russia Oil Pipeline, the workers gave up their Chinese new year holidays willingly, so the shield can move quickly with over ten meters every...

Oil casings are the lifeline which keep oil wells running. Oil casing needs to bear the complicated force coming from pulling, pressing, curving and twisting under oil well, because of the different geological conditions. Therefore, oil casing needs to have high quality. Once oil casing is damaged for some reasons, it...

Black series (a part of bulk stock, including oil, coal, steel, etc) had an extraordinary year in 2016. Look ahead to 2017, a number of people predict that there is no big rise for stainless steel market condition like 2016 but is definitely better than 2015. Look back to 2015, the market was in the doldrums due to...

3LPE anti-corrosive steel tube is divided into general grade and strengthen grade. Their fundamental difference lies in the different thickness. For common specifications of 219-478, the thickness is around 2.0 mm, and that of strengthen one is around 2.7 mm. Their prices have a differential of about 7 yuan per square...

In the first half of 2016，the market prices and profits of steel pipe tend to be better slightly, especially from March to April, showing a surprise situation. The seamless pipe rose from 2250 yuan per ton in January, to 2390 yuan per ton in June, had the total rises of about 140 yuan per ton; Market profits from loss...

Rebar futures fell on Monday is the reaction that markets against the "New Deal", is likely to be the end of the rebar futures fell, if it can return to above 60 per line on the next trading day , it’s very likely that hot dip galvanized pipe will increase. "Analysts said, the stipulation of the housing...

Firstly, according to incomplete statistics, in 2015, the capacity of crude steel was 1.17 billion tons, an increase of 1.74% year-on-year; the production was 805 million tons, a decrease of 2.2% from the same period last year and the consumption was 704 million tons, down 4.7% year on year. Thus, the coefficient of utilization...

The situation of domestic steel pipe was negative in 2015. Even has the positive currency policy, the funds was still a headache for steel pipe factories. What’s worse, the slowdown economic growth and frequently blocked export environment deteriorated the harsh situation of domestic market. In 2016, the market will...