Red copper inventory may end the trend of continuous decline. With the increase of production restriction of steel enterprises and the pressure of demand， the continuous decline of iron ore port inventory may end. In addition， according to the new statistics of * *， the available days of imported iron ore of steel mills are days， which is one day lower than that before the National Day and is on the high side of history. The steel mill said that at present， the iron ore inventory basically meets the production requirements. Considering the future production reduction and restriction the steel mill is not willing to replenish the inventory.
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.
札幌希薄な液体油汚れと軽錆の除去に適し，定の耐食性を有するリン化膜を生成する.exは表参照分な処方と操作条件.表脱脂，錆除去，リン化及び不動態化
In the first ten days of May， the overall order receiving quantity of Tianjin Hebei Henan Plate Plant was not ideal. According to the monitoring data， the overall order intake of medium and heavy plate mills in Tianjin Hebei Henan region in the first ten days of May remained stable and weak. Due to the weak market shock the overall order intake of the spot steel market was relatively weak. The total quantity of orders received in the first ten days of May is only about tons， while at the end of April， the total quantity of post settlement agreements of main steel plants can exceed tons.
ネソッタンゲン今日午前の開場時，鄭州銅排市場の価格はほぼ安定していた.ラングクラウドビジネスプラットフォームのモニタリングデータによると* mm臨沂銅棒の現在の市場価格は元（トン価格，以下同じ），* mm銅棒は元，* mm銅棒河南銅棒は元だった.
重点分野の赤銅在庫は上昇を続けているが，全体的な圧力は大きくない.現在の主要配送センターの全体的な在庫状況を見ると，Wu，安江陰，楽従，在庫レベルは比較的温和を維持し，市場の圧力は相対的に小さい.Wu&# ;データによると，月日現在，呉市中厚板の総在庫量，anは万トンに近く，毎週トン増加している.月下旬には年内に万トン減少し，週連続で上昇した.ovについて言えば数は，比較的穏やかなレベルに保たれていると言うべきだ.
銅表面の腐食が軽微であれば，亜麻銅線で拭き取ることができますが，油を塗って防腐することはお勧めしません.
It has excellent conductivity， thermal conductivity， ductility and corrosion resistance.
ased copper tube is made of oxygen free copper rod， which has good processing characteristics and can be punched， bent and other process design requirements. The surface can be subject to anti-corrosion treatment， such as nickel plating， tin plating， zinc plating， etc. The surface anti-corrosion can reach hours of fog test. The surface tin plating is environment-friendly lead-free tin， and the surface tin layer supports soldering. T degreased copper tube is mainly used for communication cabinet， transformer， charging pile， box type substation and other electrical facilities. The copper bar is harder than the plastic pipe and has the degree of common metal (the strength of the cold drawn degreased copper pipe is equivalent to that of the steel pipe with the same wall thickness). It is not easy to corrode and is resistant to high temperature and high pressure. It can be used in various applications. The main material of copper bar is copper. The melting point of copper is as high as ℃， and the temperature of hot water can be ignored for degreased copper pipe， so as long as it is used correctly， there is no need to worry about safety. When choosing to decorate the house， few people ask about the water supply pipe of the house. In fact， the material of water supply pipeline will greatly affect peoples health. T copper tube has strong capacity. Escherichia coli in the water supply will not continue to breed in the degreased copper tube，札幌45#丸鋼， and more than % of the water will disappear after entering the degreased copper tube for hours. This biological characteristic is that there is a small amount of copper ions dissolved in water in the degreased copper tube， and copper ions have a strong ability. Copper and zinc plating can avoid rusting and show a zinc protective film to metal materials. The conductive metal material repair and color enhancement care agent I can generate the thickness of the metal material epoxy protection layer and the pipelincathodic protection layer， which can resist extreme weather and is suitable for the long-term surface of metal materials. The actual effect of salt and water corrosion resistance is good. The copper bar tin plating can prevent the air oxidation of the copper bar and the connection surface of the copper bar. In addition， the melting of metal tin and copper will produce aluminum alloy， which will improve the adhesion of copper strip coating. In addition the conductivity of metal tin is good. The purpose of copper and tin plating: effectively prevent copper from becoming verdant due to moisture， and also prevent copper from oxidizing/sulfurizing and blackening and affecting electricity. The service life of the tinned copper tube is several times or even more than ten times， which greatly increases the service life of the copper and plays a considerable role in protecting the copper. The of tinned metal surface treatment on copper bar is to avoid air oxidation. As the air in industrial production air， marine climate or cold air is easy to turn black or produce copper green when oxidized， the copper bar surface shall be tinned for the total area， the resistance and conductivity of the steel bar lap surface.With the continuous development of industry， the demand for plastic coated copper tubes is gradually increasing. Then how to apply wood grain paint on alloy pipes. Wood like paint is a kind of wood like paint. It is used for spraying plastic coated copper pipe and its process flow. Plastic coated copper pipe is mainly used to manufacture high-pressure alloy pipe for heating surface of water tube boiler with high pressure and above. In the morning market， the mainstream spot price quoted by Lianzhong was - yuan/ton， and the tax inclusive base price quoted by Hongwang and Chengde was - yuan/ton. On a month on month basis， part of the producing areas recalled yuan， and the mainstream tax inclusive base price in the market changed from strongeak in the - plastic coated copper pipe supply and demand relationship. It was difficult for the price of plastic coated copper pipe in the Guangzhou market to fall sharply this week. Second， plastic coated copper tubes are widely used in superheaters， UHP and subcritical power plant boilers. Third， large diameter pipes are mainly used as headers and main steam pipes with steam parameters below ℃.
When welding， the pipe is only used to produce small air conditioning copper rods.
Advantages: good quality， fine structure， high pressure resistance， large bending deformation， suitable for frequent cold and heat exchange， large temperature difference in working environment， and large size copper tube can be produced.
重点分野の赤銅在庫は上昇を続けているが，全体的な圧力は大きくない.現在の主要配送センターの全体的な在庫状況を見ると，安，江陰，楽従，在庫レベルは比較的温和を維持し，市場の圧力は相対的に小さい.Wu&# ;データによると，月日現在，呉市中厚板の総在庫量，札幌12 Cr 1 MoV合金鋼板，anは万トンに近く，毎週トン増加している.月下旬には，年内に万トン減少し，春節後の 高水準から万トン低下し，週連続で上昇した.ovについて言えば数は，比較的穏やかなレベルに保たれていると言うべきだ.
銅管は銅管，非鉄金属管とも呼ばれている.それは圧引シームレス管であり，軽量，熱伝導性が良く，低温強度が高く，耐食性があるなどの特徴がある.銅管はこれらの優れた財産を持っているため，銅管の使用は非常に般的である.硬質銅管と軟質銅管の使用中の違いは何ですか.両者は具体的な応用の面で何が違うのか.
実行基準安全で信頼性が高い：銅管は金属管と非金属管の利点を結合している.プラスチック管よりも硬く，通常の金属の高い強度を持つ（冷抜銅管の強度は同じ硬度を持つ鋼管に相当するess）；それは普通の金属よりも曲げやすく，良好な靭性と高い延性を持ち，優れた耐振動，耐衝撃，耐凍結膨張財産を持っている.
多くの人は使用過程と生産方法の中で銅管の貯蔵方法を完全に理解していない.
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.
札幌After : on October ， continue to implement the measures of stopping and limiting production specified in TZBZ [] No. document. All sintering machines and shaft furnaces using wet desulphurization in iron and steel enterprises in the city were shut down， and sintering machines using semi dry desulphurization continued to be shut down for %. The access of vehicles is alicted. The port collection and distribution vehicles are prohibited from entering and leaving the port area. The citys steel， coking， electric power， cement， the vehicle enterprises in the above industries will implement % of the peak load shifting emission reduction measures. It is estimated that the average daily consumption of sintering powder in Tangshan will be more than yuan， and the purchase of iron ore may still maintain a small amount of prudence. In addition， the recent performance of coke is weak. Therefore， in terms of steel plant production， the support of raw materials is weak.
At present， the fundamentals faced by the domestic copper bar market are still mixed. On the one hand，札幌6063アルミニウムストリップ， the market supply is expected to shrink， but on the other hand， the northern market has entered the off-season of demand， 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， the fluuation range of the market in this region is limited， and businesses can operate flexibly on a short-term basis， and the shipment transaction is * * *.
銅管のつの製造方法の中で，酸化法が も多い.金属銅が陽極によって酸化され，陽極の銅イオンが管材料に付着すれば，銅管を生産することができるからである.これ方法も銅材料を生産する も般的な方法である.長い間使用されているだけでなく