At present, there are two trends in the downstream sales of the valve globe valve industry. One is from the city to the countryside, and the other is from the store to the electricity supplier. If the former is only an extension of space, the latter may be a change in the downstream distri
First, improper use of users; During the use of gas detectors by gas alarm users, air conditioners and heating equipment are installed close to flammable gas detectors. When air conditioners and heating equipment are used, if cold and warm air are directly blown through the body alarm, th
When it comes to stainless steel valves, everyone's most direct intuition is that stainless steel valves will never rust, and they think that if we buy a stainless steel valve with rust, it must be stainless steel. In actual fact, stainless steel will also rust under certain conditions
On December 28, 2011, the "2011 China Independent Innovation Annual Conference" was held at the Great Hall of the People in Beijing. Li Changchun, member of the Standing Committee of the Political Bureau of the CPC Central Committee, specifically gave instructions for the meeting.
At 16:30 on the 2nd, a 3-story chemical plant exploded in the No. 277 Hadong Road, Dao District. It is understood that there is a storage room for oxygen tanks not far from the fire-fighting plant. Fortunately, firemen arrived at the rescue in time and the accident did not cause any casualties. T
Determining the characteristic straight line generating the tooth surface point According to the tool parameter, the tooth height of the face gear tooth surface is determined, and the tooth length is arbitrarily selected first, so the tooth surface mesh can be pre-divided in the surface gear coordi
This week was affected by the Christmas and New Year festivals. Styrene's external disk was stable and the domestic styrene trend stabilized. In respect of raw materials, Sinopec Benzene is planned to be raised by RMB 100/t next week, pushing up styrene costs. Since mid-December, styrene produc