International warning signal recognition and annotation Posted on August 11, 2019 News Related Keywords: No tags. Road ice warning signal Road ice early warning signal is divided into three levels, respectively, yellow, orange, red.
How to buy faucets and showers Posted on August 11, 2019 With the development of the society, many building materials industries are also advancing by leaps and bounds. In the face of dazzling array of bathroom products, how to choose the products that satisfy you? Today, experts teach you how to choose a good quality faucet…
List of quality standardization assessment grades for the 2012 National Mine Rescue Brigade (independent squadron) Posted on August 11, 2019 News Related Keywords: No tags. I. Premium Quality Standard Mine Rescue Brigade (Independent Squadron) 1. Beijing Yanhua Energy Co., Ltd. Mine Rescue Team 2. Hebei Kaifu (Group)…
Analysis of future development direction of fiber optic cable technology Posted on August 10, 2019 Fiber optic cable is an indispensable part of the "broadband China" construction, and its technology development trend has been concerned and studied by industry experts. Recently, some experts from the front line of operators have expressed their views on the application of fib…
Basic principles for rescue of casualties on the scene of disaster accidents Posted on August 10, 2019 News Related Keywords: No tags. Accidental injuries and emergencies usually occur at unsafe and unsafe sites, and it takes more than ten minutes or more for professionals to arrive. Therefore, as the “f…
The role of the melt pump Posted on August 10, 2019 Http:// http:// The role of the melt pump The melt pump is a positive displacement conveying device with high-precision gear clearance and volumetric structure design, making stable and balanced extrusion possible, in chemical fiber, granulation, Plastic film, sheet, sheet,…
Analysis of the causes of improper use of rubber rollers Posted on August 10, 2019 What are the consequences of improper use of the rubber roller? First of all, in the printing quality, the uneven color of the printed matter, the color is not full, the mottled color, the ink stick, the dot gain and the like are all caused by the rubber roller. Analys…
Heart regulation after the earthquake Posted on August 10, 2019 News Related Keywords: No tags. In the face of sudden disasters, people are hit, witnessed death, and experienced destruction without any mental preparati…
Analysis of working principle of parking guidance system detector Posted on August 10, 2019 What is Parkway Parking Guidance System? The Parkway Parking Guidance System is a system that is designed for parking spaces where large parking spaces are difficult to find and parking is difficult. The system installed led display screens at various crossroads to gu…
Fire Extinguishing Countermeasures in Oil Refinery Posted on August 10, 2019 News Related Keywords: No tags. First, the principle of fire fighting
What are the hazards of welding work and how do you protect yourself? Posted on August 10, 2019 Hazard: (1) Metal smoke and dust hazards. The composition of welding fumes varies depending on the electrode used. The electrode consists of a core and a coating. During welding, a large amount of smoke and dust is generated at the same time when melting the electrode …
