An oil-free heater, also known as an non oil-filled heater, oil-filled radiator, is a common form of convection heater used in domestic heating. Oil-free heaters usually do not have fans to blow the heat into the room and office . The lack of a fan in an oil-free heater is what makes it silent and great.
so oil-free heaters are perfect and weightlight.
welcome to OEM.
thankyou
Dimplex Oil Free Heater,Dimplex Oil Heaters,Oil Free Column Heater,Free Standing Oil Heaters Fenry Manufacturing Co., Ltd , https://www.fenry-fan-heater.com
With the acceleration of the national economy and the need for national defense construction, China urgently needs to manufacture a number of large-scale rolling mills and put them into operation, providing the country with wide and thick steel plates. To this end, Yizhong Group and the German SMS company jointly set up the task of manufacturing a 5.5-meter rolling mill for Anshan Iron and Steel Group Co., Ltd. The frame is the heaviest and largest torso part of the 5.5-meter mill, and the frame casting is the most important and critical process in the rack production process. According to reports, this 5.5-meter rolling mill has a length of 15.91 meters, a width of 4.671 meters, a height of 2.2 meters and a weight of 480 tons. It is currently a blank project in the world. Due to its high manufacturing cost, long cycle and technical difficulty, some large equipment companies in the world are difficult to care about. Through a fruitful scientific and technological breakthrough, Yizhong successfully solved the problem of oversized model strength, firmly locked the steel water bag up and down, and accurately smoothed more than 700 tons of molten steel in more than 1500 degrees and five ladle in the same time. Poured into the cavity of the frame, making this challenge limit and historical casting a complete success.
The world's largest and heaviest 5.5-meter rolling mill rack has been successfully poured into five steel ladle in China's First Heavy Machinery Group. This marks that China's smelting technology has climbed to a new peak.