The chemical composition of cold-rolled ribbed strip is the same as that of hot-rolled smooth round strip. It is rolled at room temperature with hot-rolled smooth disc strip， which is called cold rolling. Due to the reorganization of steel crystal structure by cold rolling process， high tensile strength (LL， ll， ll， etc.) is obtained，Products Show which has poor ductility and cannot be welded. If there are double-sided ribs and three-sided ribs，PuntarenasCombien coûte 3087 tubes en acier sans soudure par tonneAmélioration du mécanisme de changement de vitesse du système the specification allows LL to be used as stirrup. The design value of strength is limited to n / mm?.
6Classification by production method
hChakaritaFunction of I-beam: where is I-beam mainly used?
Stretch punching by steel plate equipment; The main purpose is to be used in the structure of scaffold.
NRazrog Construction preparation
FsFrom the current scope of use， it is mainly widely used in glass curtain wall， power tower， communication power grid and other industries. In recent years， it has been widely used in many regions and industries， which is enough to show that the quality of galvanized pipe is very good， and it also brings a lot of convenience in the process of use， so it can be used better.
Welded steel mesh， a new form of reinforcement，Products Show is especially suitable for large-area concrete engineering.
Steel mesh guardrail (steel mesh fence) steel mesh guardrail refers to the guardrail made of steel mesh. It is stronger and more durable than the guardrail made of electric welding mesh， steel mesh hook mesh， etc.， but its cost is much higher， and it is rarely used under normal circumstances
mI-beam， whether ordinary or light， can only be directly used for bending members or lattice members on its Web because of its large and narrow section size and large moment of inertia difference between the two main axes on the section. It is not suitable for axial compression members and flexural members perpendicular to the web plane， so its application range is very limited. I-beams are widely used in buildings and other metal structures.
TThe allowable deviation of vertical installation of galvanized pipe is mm per meter， and the allowable deviation above m is no more than mm. The allowable deviation of horizontally installed pipes is mm per meter.
BProduction department Seismic and cracking performance the longitudinal and transverse bars of the welded reinforcement mesh form a network structure so it has good bonding and anchorage with the concrete， and the load can be evenly distributed，Products Show which obviously shows the seismic cracking performance of the reinforced concrete structure. According to the actual test， the welded reinforcement mesh laid on the road can reduce the occurrence of cracks than the manual binding mesh. It greatly reduces the unnecessary cost generated manually in the construction and shortens the construction period. The use of reinforcement mesh is simple and convenient，PuntarenasCombien coûte 3087 tubes en acier sans soudure par tonneAmélioration du mécanisme de changement de vitesse du système and the reinforcement mesh is convenient for transportation.
jDThe chemical composition of cold-rolled ribbed strip is the same as that of hot-rolled smooth round strip. It is rolled at room temperature with hot-rolled smooth disc strip， which is called cold rolling. Due to the reorganization of steel crystal structure by cold rolling process， high tensile strength (LL， ll， ll etc.) is obtained， the specification allows LL to be used as stirrup. The design value of strength is limited to n / mm?.
First， the two hole beam end space on the pier top shall be used to set the cast-in-situ transverse cantilever cantilever beam， on which the prefabricated micro bending plate shall be installed. The second is to erect prefabricated sidewalk beams in the cantilever part of the cantilever beam. The sidewalk beams of bridge openings on both sides are longer than the main beam，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd one end is supported on the cantilever beam of side pier， and the other end is supported on the special buttress on the embankment， which is to avoid widening the abutment.
Seamless pipe is a long steel with hollow section and no joints around it. There are more than production plants under more than companies in more than countries producing seamless pipes， including more than plants under more than companies in countries.
Welcome calls jAccording to the historical records of the recent four years， the zinc price in the first quarter was generally higher than that in the whole year， and generally entered a wave of upward trend in the first quarter. However， zinc prices continued to decline in the first quarter of ， and showed a trend of accelerating the decline day by day. There are two key reasons for the beginning of this year. First， the vicious change of the real estate industry has led to a rapid decline in the growth rate of China&#;s consumption of galvanized pipe and seamless steel pipe， the blind expansion of galvanized pipe factory confused the sense of rhythm of supply and demand balance.
YIt can withstand continuous moderate impact and can provide composite plates of various thicknesses
The advantage of the reinforcement mesh system is ecological. It is filled with natural stone materials. There is a gap between the stone materials to allow plants to grow in it. It can also plant plants on it. It has the dual effects of engineering slope protection and plant slope protection. The Ecological Grid mat is a combination with a height of cm ~ cm， mostly a multi grid box separated by spacer mesh.
vChakaritaDue to the impact of poor visual . Only through the application of mesh and the overall stiffness can we see the potential of demand. The application of steel data is a high one， such as the reuse rate of mesh and reinforcement installed in the current mesh production company and the treatment of corrosion. The design strength value of circular reinforcement and the design strength value of welded reinforcement mesh. According to the equal strength substitution principle and considering comprehensive factors， the use of steel welded mesh plate can save the use of steel bars in the steel welded mesh plate factory. And the reinforcement mesh needs to be processed after it is shipped to the site， humidity and wind speed during welding meet the process requirements.