On the other hand， 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，릴.2507 스테인리스 강판， 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， the drop amplitude and rate are less than those of threads.
일 중후반 and the spot price fell under pressure. Due to the strong drop resistance of medium and thick plates，릴.7075 알루미늄 막대， 비록 좋은 소식이 있지만， 예를 들면 선물 가격 상승과 무강 생산 제한 정책이 증가한다;한 지역에서는 재고 수준이 매우 높기 때문에 무역상들이 가격을 인상할 의사가 없으며， 그들 중 대다수는 이미 출하되어 현물 가격이 상승할 동력이 부족하다.시장 재고가 대폭 증가하다.당시 한단의 시장 재고는 명절 후에 비교적 높은 수준에 이르렀다.장기간 부진한 수요표현은 시장의 공급이 수요를 초과하고 재고가 지속적으로 상승하여 시장의 심리상태가 공허해졌다.
릴.The above two types of thermal connection usually use the term welding， because in both cases， molten solder is written into the narrow gap on the clean and close solid metal surface of the two devices to be installed.
The production method of soft copper tube is basically the same as that of hard copper tube， that is， the annealing process is added compared with the hard copper tube. Annealing of copper tubes means that they are calcined in a high temperature furnace to change the arrangement of the elements in the copper tubes. However， after annealing， the copper tubes will become soft， which makes it easier to bend. The copper tubes produced in this way are called soft copper tubes.
마 고현재의 전체 가격차를 감안할 때， 오늘 현지 동봉 가격은 계속 높은 수준으로 상승하고 있지만， 화동 지역 이외의 지역은 뚜렷한 후속 추세가 나타나지 않고 있으며， 현지 가격은 여전히 동북과 화중 지역과의 가격차의 우세를 가지고 있다.생산 제한의 영향으로 현지의 후속 상품량이 비교적 적기 때문에， 현지의 재고 압력은 더욱 낮아질 것이며， 동봉 가격의 지탱은 여전히 강하다.그러나 현재 국내 부동산 통제는 여전히 강화되고 있다.시장 & # ;미래의 수요에 대한 시장의 예상이 약화되고 있습니다.오늘 심양 동봉의 시장 가격이 안정되어 출하량이 좋지 않다.
Strong connection firmness of copper pipe: the connection between copper pipe and copper fittings is strong.
If the corrosion on the copper surface is found to be slight， it can be erased with linen copper wire， but it is not recommended to apply oil for preservation.
The copper tube shall be heated and welded first， and then the joint shall be heated until the heated part turns dark red. At this time when the filler metal contacts the tube， the filler metal shall melt.
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， 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.
The difference between hard copper tubes and soft copper tubes in use Hard copper tubes can only be used as straight tubes and cannot be bent. Therefore， they are generally used in power plants， switches of electrical equipment， and places where the connection points are far away and do not need to be bent. Compared with soft copper tubes， the price of hard copper tubes will be lower. Although the name of the soft copper tube is soft tube， it can also be used as a hard tube， so the soft copper tube is used in more places and can be used in a straight tube way，릴.T2 동갈비， it can be cut randomly according to the length， so as to prevent leakage when welding the copper tube. Soft copper pipes are used in many refrigerators， air conditioners and other places where bending pipes are needed. When we use copper， we need not consider the preservation problem unless we buy a small amount at home. For example， large manufacturers use copper units to buy a large number of copper pipes once， so there will be a problem. I believe some people do not know how to store unused copper materials， Now lets ask our staff to introduce the storage method of copper for you.
결론 을 검증 하 다Red copper bars in other regions basically follow the price trend of Tangshan， in which the bid of Jiangsu Steel Works tends to be higher， and most of the downstream prices are asked， and the overall market transaction is fair. The steel mills in Wuan are limited in receiving orders， and the market resources are tight. Most of the merchants are reluctant to sell. Shanxi billet market offers vary， and it is difficult to clinch a deal. The willingness of downstream customers to receive orders is weak， so they hold a cautious wait-and-see attitude. At prepresent， the steel market is in the "golden third" peak season. The market has a good expectation of the future market and a strong willingness to support prices. It is expected that the prices of Tangshan mainstream billets will be stronger next week.
Insert the pipe into the top of the bayonet，e the sleeve on the pipe to evenly apply the flux on the joint， and confirm that the pipe is inserted into the bottom of the socket， and the joint is assembled and can be heated.
The hard copper tube is not artificially treated after being drawn or extruded， so that it can be naturally formed. At this time， the organizational form in the copper tube is full. This kind of copper tube is more likely to crack and is not suitable for bending. Therefore， the hard copper tube is generally straight.
동봉시장은 이번 주에 안정적으로 하락하여 하락폭이 ~원이다.생철 재고가 비교적 낮기 때문에， 장시의 일부 제철소는 최근 이미 구매를 재개했지만， 구매량은 크지 않다.전기 양철 구매 가격이 비교적 낮기 때문에， 구매량을 확보하기 위해 윈난 제철소의 양철 구매 가격은 약간 인상되었다.최근 강재 시장은 줄곧 흔들리고 조정 중이어서 상인들이 불안정하다.허베이， 톈진 및 기타 지역의 제철소는 이미 제강용 생철 생산을 중단했다.지금은 주로 조사가 이뤄질 것으로 보인다.그러나 원자재 가격이 낮기 때문에 제철소의 가격은 이미 인하되었다.
설치 조건우선， 우리는 창고를 하나 세워야 한다.창고 내의 온도는 보통 - & deg로 유지해야 한다.C. 습도는 정상이어야 합니다.방은 통풍을 유지해야 한다.
많은 사람들이 사용과정과 생산방법에서 동관의 저장방법을 완전히 료해하지 못하고있다.
The second of the five application fields of red copper plate T， red copper row and red copper tube: copper is widely used in the chemical industry to manufacture vacuum vessels， distillation pots， brewing pots， etc.
릴.I dont know how to keep the copper tube.
가장 간단한 방법은 구리 세정제를 사용하는 것이다.황동， 자동， 청동 등을 사용할 수 있다.표면의 기름때， 지문， 산화층 등은 먼저 구리 세정제로 세척할 수 있다.
철광석 선물 주력은 에서 로 마감했다. 이날 종가는 ***， **， 결제가 ， 보유량 를 포함해 전 거래일과 같았다.일내 거래g 거래량은 전 거래일보다 만 명， 보유량은 전 거래일보다 만 명 줄었다.일 연속 하향 조정 후 오늘 장중 하단에서 반등하였으나， 그 후 다시 반등하여 보합으로 마감하였다.
