On the other hand， in the steel plant， the lock price of the steel plant has been falling all the time， and the order receiving is poor. The capacity utilization rate of the steel plant is low， but the market is still in oversupply. The stock of the steel plant and the spot stock are both risirising， so the market price has fallen sharply. Subsequently， the futures market rebounded in a wave， and the spot price also increased with the increase. There was an instant of large volume of transactions. However， with the decline of black futures， the market transaction volume shrank significantly. In addition， the inventory pressure was high， and the spot price fell under pressure. Due to the strong drop resistance of medium and thick plates， the drop amplitude and rate are less than those of threads.
At the opening this morning， the market price of Zhengzhou copper bar was basically stable. According to the monitoring data of the Lange cloud business platform， the current market price of * mm Linyi copper bar was yuan (ton price， the same below)， the * mm copper bar was yuan， and the * mm copper bar Henan copper bar was yuan.
이 스 너Re treat the water quality.
Four of the five major application fields of copper plate， copper bar and copper pipe: copper is used as various pipes， in September ， Chinas imported iron ore * * * broke through the million ton mark， reaching million tons， a record high; From January to September， Chinas iron ore import increased by % to million tons，이 스 너빨간 동봉， and the annual import volume is expected to exceed billion tons. However， judging from the shipment of imported ores after the National Day， the iron ore price index once fell below $， which reduced the enthusiasm for the shipment of imported ores. In addition， and the supply of some domestic mines has been greatly affected. The current operating rate of domestic mines is percentage points lower than the previous peak， which is likely to decline further in the future.
Later， Mexican scientists also found that copper has a . Recently， British researchers found that copper has a strong bactericidal effect. It is believed that in the near future， copper will make great contributions to improving human health. Copper plate T is named after its purple color. It is not necessarily pure copper， sometimes it also involves a few deoxidizing elements or other elements to improve raw materials and s， so it is also included in copper alloys. The processed materials of Chinese cor plate can be divided into four categories according to the composition: ordinary copper plate (T， T， T， T， oxygen free copper plate (TU， TU and high-purity， vacuum oxygen free copper)， deoxidized copper plate (TUP，이 스 너321 스테인리스강 권재， TUMn)， and special copper plate (arsenic copper， tellurium copper， silver copper) with a few alloy elements added. The conductivity and thermal conductivity of copper plate are second only to silver， and are widely used to manufacture conductive and thermal conductive devices. The red copper belt has outstanding corrosion resistance in the atmosphere sea water， some non oxidizing acids， alkalis， salt solutions and a variety of organic acids (aic acid citric acid)， and is used in the chemical industry. In addition， the red copper plate has outstanding weldability and can be made into various semi products and products through cold and thermoplastic processing. In the s， the output value of copper plate exceeded that of other copper alloys.
기타 지역의 자동봉은 기본적으로 당산의 가격추세를 따르는데 그중 강소제철소의 입찰가격이 더욱 높아지고 대부분 하류가격이 요구되여 총체적인 시장거래는 공평하다.오씨강철공장;앤은 주문을 받는 데 제한을 받아 시장 자원이 부족하다.대부분의 상인들은 팔기를 원하지 않는다.산시 (山西) 성의 벽돌 시장은 가격이 각기 다르기 때문에 교역을 달성하기 어렵다.하류 고객들은 주문을 받으려는 의지가 약하기 때문에 신중하게 관망하는 태도를 보인다.미리현재 철강 시장은 & amp;quot；황금 제 "；성수기.시장은 미래 시장에 대해 좋은 기대를 가지고 있으며 가격을 지지하려는 의지가 강하다.다음 주에 당산의 주류 강철 벽돌의 가격이 더욱 높아질 것으로 예상된다.
Copper tube is also called copper tube nonferrous metal tube. It is a pressed and drawn seamless pipe， characterized by light weight， good thermal conductivity， high low-temperature strength and corrosion resistance. Because of these excellent properties of copper tubes， the use of copper tubes is very common. What are the differences between hard copper tubes and soft copper tubes in the use process? What are the differences between the two in terms of specific applications?
동관 표면을 방지하기 위해 포장재의 습도는 잘 통제되어야 하며， 모든 목재 및 종이 포장재의 수분 함유량은 % 이하로 엄격히 통제되어야 한다.각 재료는 구리 파이프가 외부에서 수분을 흡수하지 않도록 폴리에틸렌 필름으로 긴밀하게 포장됩니다.
With the advent of heating season， the raw material support of red copper row is weak. Under the influence of heating season and environmental protection production restriction， steel mills in some regions began to implement the production restriction measures for blast furnaces in heating season， and the demand for iron ore was weakened. In addition， the production restriction policy was issued in Tangshan today. From : on October to : on October ， the production restriction measures specified in this Notice were implemented.
에너지 비용The blowpipe shall be perpendicular to the lead pipe during welding， and the flame shall be moved continuously to prevent local overheating and the flux from carbonizing before filler metal is added.
Overview of three production methods of copper tube Copper tube is a very important material for copper materials. There are many ways to complete the production of this copper tube. For copper pipes， the following three methods are generally used to produce materials. The copper tubes produced by these three methods are not only very good in performance， but also very convenient to operate. There are three production methods for copper tube， so what are the three production methods for copper tube?
Overview of three production methods of copper tube Copper tube is a very important material for copper materials. There are many ways to complete the production of this copper tube. For copper pipes， the following three methods are generally used to produce materials. The copper tubes produced by these three methods are not only very good in performance， but also very convenient to operate. There are three production methods for copper tube， so what are the three production methods for copper tube?
At present， the fundamentals faced by the domestic copper bar market are still mixed. On the one hand， the market supply is expected to shrink， but on the other hand， and the markets expectation of future demand is pessimistic. In the short term， domestic steel prices will enter the operating track of range consolidation. To sum up， considering the current situation of demand and inventory in the steel market， it is difficult for the steel market to make a breakthrough. As the th National Congress of the Communist of China is approaching environmental protection phenomena such as steel mills are still going on， and black series speculation is still taking place. But personally， and businesses can operate flexibly on a short-term basis， and the shipment transaction is * * *.
검사 항목On November ， the market price of Cangzhou copper bar was stable. According to the monitoring data of Lange Iron and Steels cloud business platform， the market price of * mm cold drawn steel produced in Linyi is yuan， the market price of * mm in Linyi is yuan， the market price of * mm in Jianlong is yuan， the market price of * mm in Yuanhua is yuan， the market price of * mm in Juneng is yuan， the market price of * mm in Baotou Steel is yuan， and the market price of * mm in Juneng thermal expansion is yuan.
Avoid discoloration of coil surface due to pollution， and control the composition of auxiliary materials such as lubricating oil and cleaning agent. The supplier is required to provide technical performance indicators such as viscosity， flash point， acid value and distillation range and the third-party test report of elements harmful to copper tubes. In the rewinding process， strengthen the cleaning of the copper tube surface to reduce the residue of lubricating oil on the copper tube surface.
쌓을 때는 합리적으로 쌓고 우선적으로 놓아야 한다.
이 스 너Safe and reliable: copper pipe combines the advantages of metal pipe and non-metal pipe. It is harder than plastic pipes and has the high strength of ordinary metals (the strength of cold drawn copper pipes is equivalent to that of steel pipes with the same waess); It is also easier to bend than ordinary metals has good toughness and high ductility， and has excellent anti vibration anti impact and anti frost expansion properties.
Advantages and scope of application of copper tube ground heating At present， ground heating is not only a comfortable heating method， but also a symbol of modern life quality. More and more houses， public buildings， sports facilities， industrial facilities and other places begin to use ground heating radiator， which is an important part of ground heating. Due to the corrosion resistance of copper， copper tubes are selected as the main material of radiator in many places.
Advantages of red copper tube Durability: copper has stable chemical properties， integrating cold resistance， heat resistance， pressure resistance， corrosion resistance and fire resistance， and can be used in different environments for a long time.