Breathing valve body can withstand 0.2Mpa pressure, no infiltration and deformation. Respiratory valve resistance to low temperature performance in the air relative humidity greater than 70%, the lowest temperature of -30 ℃, after 24 hours of freezing, the valve opening pressure in line with t
First, a full set of original bills of lading note number. Is it submitted according to the terms of the letter of credit? 2. Whether the bill of lading has the full name of the carrier (CARRIER) and the term "CARRIER" to indicate his identity. 3. If the bill of lading has been
"China will shift from a big automobile manufacturing country to a powerful automobile country, and we expect its production and sales in 2015 will reach 25 million to 31 million vehicles." While the "12th Five-Year Plan" of the automotive industry has thrown a huge capac
A domestic plastic recycling trade association intends to launch a voluntary eco-certification program for the recycled plastics industry. It hopes to use this industry to open a more lucrative consumer market, and at the same time it will try to reverse the negative impression caused by plastic re
A few days ago, the first-phase project for the development of a quality potassium feldspar mine with proven reserves of 150 million tons was started in Yuexi County. As a provincial "861" key project and provincial key construction project, it has been listed in the "Twelfth Five-Ye
On November 19, 2010, Caterpillar announced that it will build the most advanced plant in Tianjin and expand its global large-scale engine production capacity with a project investment of 300 million U.S. dollars. It is Caterpillar's largest investment in China's largest new engine to date
On November 15, 2010, Lu'an City Government of Anhui Province jointly held the signing ceremony of Anhui East China Huaxia Special Vehicle Project with Jianghuai Automobile Group and Jidong Trade and Industry Group. It is understood that due to the industry's high prospects for the market
1. Dust properties and their hazards Dust refers to solid particles that can be suspended in the air for a long time. The suspended dust is an aerosol. The dispersing medium is air, and the dispersed phase is solid particles. The flying dust is solid particles that can float in the air for a long t