The copper bar market declined steadily this week， with a decline of - yuan. Due to low pig iron inventory， some steel mills in Jiangxi have resumed purchasing recently but the purchasing volume is not large. The purchase price of pig iron in Yunnan steel plants was slightly increased to ensure the purchase volume due to the low purchase price of pig iron in the early stage. Recently， and the merchants are unstable. Steel mills in Hebei the steel market has been in shock and adjustment， Tianjin and other regions have stopped producing pig iron for steelmaking. Now， it is mainly expected to make inquiries. However， due to the lower price of raw materials， the price of iron mills has been lowered.
랴오닝의 일부 제철소는 생철을 구매할 의향이 있지만， 현지의 자원이 부족하여 제철소;정액，정액
구 무 국합격된 구리 원료를 사용하여 생산하고， 가능한 한 재생 구리로 생산된 파이프를 사용하지 않으며， 불순물의 부식을 줄이고， 구리 파이프의 사용 수명을 연장한다.
Extrusion method: This production method is to cast copper ingots after smelting， and extrude copper tubes by large extruder after secondary heating.
비 니 아 레 즈동관 세 가지 생산 방법의 복합법도 이 방법의 하이테크 생산 방법이다.그것은 불순물을 함유한 구리 재료이다.전기 화학 반응을 통해 이러한 구리 재료， 구리 합금 및 복합 구리 재료를 함께 넣어 나노 결정 구리 재료를 만든 다음 그 재료를 정제하여 구리 파이프 재료를 만듭니다.
Extrusion method: This production method is to cast copper ingots after smelting， and extrude copper tubes by large extruder after secondary heating.
Disadvantages of copper pipe As far as copper pipe is concerned， high production cost and high price are its biggest disadvantages. Compared with other pipe fittings， the cost of copper pipe is much higher， and the connection at the copper pipe interface requires high construction technology level.
In August， the price of domestic medium and heavy plates fell sharply. As of August ， the price center of ordinary carbon boards in leading cities had dropped to ， affected by the macro bad news， and the recent poor performance of fundamentals， the market mentality turned to pessimism， and some traders shipped at low prices. The market inventory rose， and the market transaction atmosphere was cold， the demand performance continued to decline， and the spot price fell under pressure.
정기적으로 동관을 검사하고 모니터링하여 동관의 부식으로 인한 손실을 줄이다.
적동판 T， 적동배출， 적동관 대 응용분야의 : 구리는 화학공업업종에 널리 응용되여 진공용기， 증류탱크 양조탱크 등을 제조하는데 사용된다.
휘황찬란 하 게 만들다The market price of Zhengzhou copper bars is basically stable， and the shipment is not good. In terms of tube blank: today， Shandong Luli tube blank slightly reduced by yuan， and the current mainstream ex factory price is - yuan. In terms of pipe plant: Linyi Pipe Plant locked the price for a week. With a stable market mentality， the factory price of hot rolled seamless pipes is now between - yuan. On the market side: with the arrival of the off-season， traders generally ship goods at a high price. Replenishment is mainly to maintain the existing inventory， and there is no large replenishment plan. The demand is sluggish， and the market price of Zhengzhou copper bar is expected to be stable and declining.
It can be wrapped with moisture-proof paper for moisture-proof protection. It can also prevent oxidation to a certain extent. If cracks or serious corrosion are found， they must be isolated.
For small diameter pipes， when using filler metal， the length of filler metal is allowed to be equal to the diameter of the pipe， which is enough to fill the weld crater. One of the five major application fields of red coppr plate T， red copper bar and red copper tube: copper is the most widely used and used in the electrical and electronic industries， accounting for more than half of the total consumption. Used for various cables and wires，구 무 국2205 스테인리스 강판， motors and transformers， switches and printed circuit boards; In the manufacture of machinery and transport vehicles， it is used to manufacture industrial valves and accessories， instruments， sliding bearings， molds， heat exchangers， pumps， etc.
Tangshan billets rose sharply last weekend， steel mills in some northern cities implemented production restriction， and some domestic economic data improved， which boosted manufacturers confidence. Today， steel prices generally rose. However， with the approaching meeting and the rainfall in the south caused by the typhoon， the construction progress of the downstream construction site is affected， which is not conducive to the continuous demand. The high spot price transaction today is weak which is difficult to support the continuous rise of steel prices. It is expected that the building materials market will maintain a volatile trend tomorrow， and some businesses may reduce prices and take goods.
응용 프로 세 스On 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， 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，구 무 국알루미늄관， the inventory pressure was high， traders shipped at low prices， the drop amplitude and rate are less than those of threads.
장점: 투자 원가가 낮고 생산 원가가 낮으며 생산량이 높고 가격이 낮다.
The conductive production of copper tube is the latest method for this method. It is the production of nanocrystalline copper materials with conductivity. Because this raw material is very special， it is a copper material produced by using nanotechnology，구 무 국공심 알루미늄 관， and copper ions can be separated by conductivity， so that copper tubes can be produced with the separated copper ions. This method is very complex， requires high technology and new equipment， so only advanced foreign countries can use this production method.
구 무 국Disadvantages: Due to loose tissue and high pressure resistance， the pipe is only used to produce small air conditioning copper rods.
파이프를 카드 상단에 삽입하고，e 파이프의 튜브를 이음매에 고르게 바르고 파이프가 베어링 바닥에 삽입되었는지 확인한 다음 여분의 용접제를 닦아내고 이음매를 조립하고 가열할 수 있습니다.
The room temperature tensile strength of the annealed red copper sheet is ~ kgf/mm， the elongation is ~%， and the Brinell hardness (HB) is ~
