Fifth, tea. Winter tea is in a dormant period, generally low temperature overcast and rain has a limited impact on tea, but if it encounters wind and freezing or extremely low temperature, it will affect tea tree winter and spring tea production in the coming year. According to the weather conditions, take measures to protect against cold and heat preservation according to local conditions. One is to cover and keep warm. Cover the tea cover with rice (miscellaneous) grass, sunshade net and so on before the cold air comes. The second is to build barriers and guard against the wind. The land easily affected by wind freezing, the windproof barrier was established in the windward place by using materials such as sunshade net in advance, which was higher than the 20cm of tea canopy and tilted to the direction of tea tree. The third is to restore the tree situation in time. For the heavily frozen tea garden, due to the appropriate tree system after the beginning of spring, it is better to prune rather than deep pruning, so as to strengthen the management of spring tea fertility.
Although the solar greenhouse has a very good thermal insulation performance, but from the point of view of safety, heating equipment is still an important factor. The southern part of our country generally does not need to heat up, but if we encounter bad weather continuously, we still need to use the energy stored in the greenhouse itself, otherwise it will not be able to meet the growth of vegetables. Therefore, whether in the south or north, heating equipment has always been a necessary protective measure. The technical aspect requires that in the equipment configuration of solar greenhouse, the configuration of thermal insulation equipment should be demonstrated in great detail. Of course, the work of Jingmen Wenluo glass greenhouse needs the cooperation of a variety of equipment, with higher and higher temperature requirements, especially in autumn and winter production, external sunshade system, internal thermal insulation system and window opener and fan, wet curtain and other equipment need to be applied. For more information about how much the Jingmen Wenluo glass greenhouse is, please contact Minghao greenhouse Engineering and Construction Company directly.
The experience of taking the road as home is also a variety of tests of the RV. The life of the three members of the Jie family in the car can be said to be very comfortable. The Dongfeng RV is like a small family. The large space of 13.8 inches and the height of nearly 2 meters in the car allow people to walk around in the car at will, and the changeable decoration design is also extremely humanized, such as a small table that can rise and fall, magic double bed and so on. And the sanitary facilities and kitchen facilities in the car are readily available. Outside the car, there is also a large area of telescopic sunshade, parking, a family of three picnics under the sunshade, this kind of spring breeze, talking and laughing life, why not a kind of enjoyment.
External shading mainly refers to covering the sunshade net on the outside of the greenhouse, which directly shields the solar radiation outside the greenhouse, which can effectively reduce the temperature in the greenhouse. At the same time, the external shading system can be active. with the continuous development of science and technology, there are more and more kinds of greenhouses, and greenhouses for cultivating all kinds of plants and organisms are also built, and a variety of methods are used to control the temperature in the heat preservation work. every week, when irrigation is carried out, the end of each drip irrigation pipeline is opened in turn, and the fine particles accumulated at the end of the eyedropper are flushed out with high-pressure water. The pipeline must be opened one by one to ensure sufficient pressure,
Business scope: production and sales of automobile intelligent cockpit, door guard assembly, dashboard assembly, auxiliary dashboard assembly, suitcase interior assembly, coat rack assembly, sunshade assembly, column assembly and other products.
In terms of transport, the plastic used by vehicles, trains, ships and other means of transport and corresponding ancillary facilities is increasing year by year on a per-vehicle basis or per-vessel basis. Varieties include fuel tank, bumper, sunshade seat, door handle, steering wheel, dashboard and so on. As a new type of packaging material, plastic has been widely used in the field of packaging. For example, a variety of hollow containers, injection containers (turnover boxes, containers, buckets, etc.). Packaging film, woven bags, styrofoam, binding rope and packing straps, etc.
Polyurethane, according to the different products of polymerization, is commonly divided into hard polyurethane and soft polyurethane. Polyurethane foam is widely used in automotive interior decoration and vibration-absorbing parts, such as coating materials, polyurethane rigid plastic plates, polyurethane elastomers, seat soft foam materials, decoration parts, sofa leather, roof accessories; the most widely used is a variety of soft and hard polyurethane foam materials, which have vibration insulation, sound insulation, noise reduction, thermal insulation; PU can also be made into automotive polyurethane coatings, binders, sealants and so on. The PU representative parts on the car are dashboard, rearview mirror, bumper, seat cushion, headrest, steering wheel, instrument panel anti-vibration pad, pillar decoration, front roof lining, window frame, ceiling and side roof frame decoration, door liner, sunshade panel, rear roof frame decoration and so on.
