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4. The thermal insulation layer and anti-corrosion coating should avoid direct contact with flame. For on-site installation of directly buried thermal insulation pipe, please follow the following procedures: pipe trench excavation-base treatment (drainage, sand cushion)-lower pipe-steel pipe welding-inspection (water pressure)-installation (pressure test)-foaming-sealing foaming cell. Prefabricated directly buried insulation pipe connection patching installation: our company can send personnel to the project site to carry out the heat preservation work of the joint, including the installation of the joint outer casing, the connection and sealing of the joint outer casing with the supervisor and the foaming work of the on-site joint, but it does not include the welding of the joint part of the steel pipe. The insulation layer is made of rigid polyurethane foam whose density is greater than 60Kg/ cubic meters. The foam fully fills the gap between the steel pipe and the casing and has a certain bonding strength, so that the steel pipe, the outer casing and the insulation layer form a solid whole. Compound insulation layer can be used in steam pipe.

Zhaodong thermal insulation pipe fittings direct sales 4, insulation layer and anti-corrosion layer should avoid direct contact with flame. For on-site installation, please follow the following procedures: pipe trench excavation-base treatment (drainage, sand padding)-lower pipe-steel pipe welding-inspection (water pressure)-installation (pressure test)-foaming-sealing foam cell. Elbow and joint installation can send personnel to the project site to carry out the heat preservation work of the joint, including the installation of the outer casing of the joint, the connection and sealing of the outer casing of the joint with the supervisor, and the foaming work of the on-site joint, but it does not include the welding of the steel pipe of the joint. Polyurethane thermal insulation elbow has good thermal insulation performance, strong waterproof and corrosion resistance, can be directly buried in the ground or water, simple and rapid construction, low comprehensive cost, long service life, convenient maintenance and low cost. It is widely used in liquid and gas transportation pipe network, chemical pipeline insulation engineering, petroleum, chemical industry, centralized supply, air conditioning and ventilation duct, municipal engineering and so on.

After years of development, the external wall thermal insulation system has made great progress and has been popularized very quickly, but there are still some problems in practical application. This paper mainly discusses the technical status of the expansive plaster thin plastering system, which is generally concerned about the load-bearing and safety, fire prevention, crack prevention, service life and so on, and combines theory with practice in order to be easy to understand. It can be used as a reference for practitioners (production technicians, construction personnel, project supervisors, etc.) related to building energy saving and thermal insulation. The application and technical status of external wall thermal insulation from the increasingly tense situation of energy and the height of sustainable development of social economy in our country, building energy saving is very important. Now new buildings require mandatory thermal insulation and energy saving. The old buildings being used in the future will also require thermal insulation and energy saving, which is a long-term work. From the perspective of the development trend, it is a rare development opportunity with good prospects.

Current lawyer, patent agent, senior intellectual property teacher, patent associate researcher, engineer Deputy General Manager of Guangzhou Jiaquan Patent and Trademark Office Co., Ltd., Vice President of Guangdong Patent Agency Association, Vice President of Guangdong intellectual property Protection Association, Supervisor of Guangdong Enterprise Federation, Vice President of Guangzhou Enterprise Federation, part-time professor of Wuyi University, arbitrator of Guangzhou Arbitration Commission, the first batch of experts from Guangdong intellectual property Office and leading talents in Guangzhou innovation and entrepreneurship service. He has represented the intellectual property cases of the top 500 enterprises in the world, and is good at the invalidation and litigation procedures of standard necessary patents in the field of communications.

Guangzhou Yongfeng Agricultural products Development Co., Ltd. is one of the businesses responsible for supplying these vegetable bags. According to the person in charge of the company, since the outbreak of the local epidemic, the company has increased market supply, actively transferred the supply of home-grown vegetables from Zhongluotan Town, Jiangxi Province, and other home-grown vegetable bases, sampled and tested each type of vegetables from the field, and then reported them to the production supervisor after passing the test. the vegetable farmers will harvest the vegetables uniformly, and the vegetable production will be strictly controlled by the whole chain. During the epidemic, the company can supply about 10 tons of fresh leafy vegetables per day, which can not only ensure that residents in the controlled areas eat a wide range of vegetables, but also ensure that fresh vegetable products are not out of stock and out of stock.

The company is composed of senior business administration consultants and financial experts, and has a good cooperative relationship with major banks, industrial and commercial administration at all levels, and tax administration departments to ensure timely and efficient handling of all kinds of industrial and commercial tax affairs, and to provide timely policy and legal advisory services. the company is committed to providing registration and bookkeeping services for customers in Guangzhou, so that you can really save worry, time and effort. To provide professional one-stop service for entrepreneurs and escort innovation for entrepreneurs.

The variability of news scalability, but should be carried out in step with the installation of the panel. It shows that the design of driving power and circuit is not good. 2. Application research 1. In recent years, the advantages of external thermal insulation of building exterior wall are more and more accepted and popularized by designers, construction and supervisors. it has become the leading technology for the implementation of building energy conservation. Suitable for internal and external thermal insulation plastering of reinforced concrete, aerated concrete, blocks, sintered bricks, non-sintered bricks and lightweight wall materials in multi-storey and high-rise buildings,

For on-site installation, please follow the following procedures: pipe trench excavation to base treatment (drainage, sand cushion) to lower pipe to steel pipe welding to inspection (water pressure) to installation (pressure test) to foaming to sealing foam hole. Elbow, personnel can go to the project site to carry out joint heat preservation work. It includes the installation of the joint outer casing, the connection and sealing of the joint outer casing with the supervisor and the foaming work of the on-site joint, but does not include the welding of the steel pipe of the joint part.