The main force of iron ore futures closed at in The closing price of the day today was the same as that of the previous trading day， including * * * * ， * * * ， settlement price ， trading volume ， and position volume . The intraday tradg volume decreased by compared with the previous trading day， and the position volume decreased by compared with the previous trading day. After six consecutive days of downward adjustment， there was a rebound at the bottom of the session today， but it was corrected again later， and the closing was flat.
사위As theation effect of copper material on the agent is weak， the dissolved oxygen and air bubbles in it will corrode it.
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.
트 렌 트 스 토 크The 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.
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?
쌓을 때는 합리적으로 쌓고 우선적으로 놓아야 한다.
배치할 때는 다른 성분에 따라 따로 보관해야 하며 함께 혼합해서는 안 된다.구리 표면에는 전해질이 있을 수 있기 때문에 반응할 수 있으며， 특히 고무 등 다른 재료와 반응할 수 있어 큰 영향을 미칠 수 있다.
Standardize production.
In the morning trading today， the price of domestic copper bar fell. According to the monitoring data of Lange Steels cloud business platform， the average price of * mm hot rolled strip in key cities in China is ， down yuan from yesterday. Futures prices fluctuated，사위7075 알루미늄 튜브， and the prices of spot market manufacturers eased slightly today. According to the feedback， the market was mainlysee yesterday， which caused the overall transaction blocked， and the mainstream manufacturers prices fell today.
안전 요구중점 분야의 홍동 재고는 지속적으로 상승하고 있지만 전반적인 압력은 크지 않다.현재 주요 배송센터의 전체 재고 상황을 보면 Wu;안， 강음과 락종， 재고수준은 상대적으로 온화하고 시장압력은 상대적으로 작다.Wu 에서수치가 보여준데 따르면 월 일까지 오시 중후판의 총창고보유량，an은 만 톤에 육박하여 매주 톤이 증가한다.월 하순에는 연내에 만t이 떨어져 설 이후 최고 수준보다 만t이 떨어지고 주 연속 상승했다.ov로 말하자면수량은 상대적으로 온화한 수준을 유지한다고 말해야 한다.
Hygiene and health: various modifiers， additives，사위냉각 구리 파이프， additives and other chemical components of plastic pipes in copper pipes.
In the middle and late ten days although there were good news such as the rise of futures and the increase of production restriction policy in Wuan region， due to the high inventory level， traders had no desire to increase prices，사위T2 동갈비， most of them had shipped goods， and spot prices lacked motivation to rise. The market inventory rose significantly. At that time， the market inventory in Handan reached a high level after the festival. The sluggish demand performance for a long time led to the oversupply of the market， and the continuous rise of inventory led to the empty market mentality.
당산강판이 지난 주말에 대폭 상승하여 일부 북방도시의 강철공장이 생산제한을 실시하였고 일부 국내경제수치가 다소 개선되였는데 이는 제조업체의 신심을 진작시켰다.믿음오늘날 강재 가격이 보편적으로 상승하고 있다.그러나 회의가 다가오고 태풍으로 인한 남쪽의 비가 내리면서 하류 공사장의 공사 진도가 영향을 받아 지속적인 수요에 불리하다.고현물 가격 거래이 지역 시장의 평가 범위는 제한되어 있으며， 기업은 단기간에 유연하게 경영할 수 있으며， due to the influence of factors such as the current spot market price is much higher than the expected winter storage price of merchants， the gradual emergence of supply and demand pressure， and the weakness of raw material support， the author believes that in the short term， the spot building materials do not have the possibility to rise significantly， and the price of building materials may mainly operate in shock， but with the shrinking demand， the supply and demand pressure becomes prominent， However， considering the influence of winter storage and other factors， it is still possible for merchants to lower the spot price in November.
Welding sequence of copper pipe Before heating， apply the flux to the position to be welded.
또 다른 집산지인 강음시장에서 현재 유통단계의 전체 재고는 약 만 톤으로 정상 수준보다 약간 낮다.이번 주 초 강음 가격과 북방 가격 간의 가격 격차도 약간 낮은 유통 재고에 대응했다.그러나 제철소 정책항을 보면， 남강， 항윤， 다다 등 전체 생산 상황은 비교적 정상이며， 후기 자원량은 안정을 유지한다.락종시장의 전반 재고는 만~만톤 좌우를 유지하여 중등정상수준에 속하며 최근 락종시장의 현물가격은 북방과 비교적 큰 차이가 있다.
사위동관 연결의 견고성이 강하다: 동관과 동관 부품의 연결이 견고하다.
The material of the water separator is the same， the expansion coefficient is the same， and the connection with the water separator is not easy to leak. Scope of application: As the copper pipe is more expensive than the plastic pipe， the cost of the floor heating system is higher.
The 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.