Three trees paint plate paint building materials market decoration design home home decoration decoration home The characteristics of rope core drill pipe are "three highs and one low", that is, high drilling speed, long life of diamond bit, high time utilization rate, low labor intensity of workers, so it is widely used in geological prospecting, coal field exploration and other fields. Among the whole set of drilling tools, the most important and most valuable is the drill pipe. The quality of the drill pipe is directly related to the use of the advantages of rope core drilling, and is also vital to the accurate acquisition of geological data and the control of drilling costs. Drill Rod,Tube For Drilling,Drill Pipe,Drill Extension Rod wuxi shengmeirun trading co.,ltd. , https://www.wxsmrxz.com
Aluminum-plastic composite board problem Multi-aluminum-plastic composite panel inspection pass rate of 63.3%, sampling sites are mainly Taihua Road building materials market, Daejeon Building Materials City, Daming Palace building materials market, Sunjiawan Plate City, home building materials market and other building materials wholesale market.
The spot check results showed that in order to reduce costs, production enterprises of substandard products used aluminum sheets and inferior plastic sandwich materials that could not reach the thickness requirements. If such plates are used in construction and renovation, they are prone to breakage and deformation. The surface toughness of some plates and the firmness of the surface coating are not enough. After being impacted by the external impact, the surface will produce the phenomenon of coating shedding, cracks, etc., and will not achieve the original decorative effect of the aluminum-plastic composite plate.
The failure rate of unqualified steel bars is 68%. The main unqualified items are size, mechanical properties and bending properties. In the project construction, the products that do not meet the standard size will not meet the expected results in the construction design requirements, thus causing potential safety hazards. However, when consumers use such products whose mechanical properties and bending properties do not meet the national standards, quality accidents are likely to occur in construction projects, such as the collapse of buildings and the breakage of bridges. Some steel mills still use the ground steel that has been explicitly eliminated by the country as raw materials for processing and production. For the above unqualified products, the law enforcement department of the Shenzhen Municipal Quality Supervision Bureau has ordered the distributors to stop the sales and rectify the deadline.
Building Materials Market Reinforced Wood Coatings Aluminum-plastic Composite Plates
Xi'an Municipal Bureau of Quality and Technical Supervision recently carried out quality supervision and random inspections of wooden lacquer, aluminum-plastic composite panels, and hot-rolled ribbed steel bars sold on the market and found many problems. 30% of unqualified wood wares. This time, for wood lacquers, 20 batches of samples of different grades were sampled from some of the larger building materials wholesale markets and large building materials supermarkets in Xi’an, with a pass rate of 70%. The main cause of product non-conformity is that manufacturers have to cut corners in order to reduce production costs. For example, if the content of active ingredients of some products is low, the natural environmental performance will be poor. At the same time, the sanding performance and the drying speed of the paint film will also be affected during the construction process, resulting in brush marks, shrinkage holes, etc., and economic losses to consumers.