The price of pig iron market rose by - yuan this week，コンポンスプー40 Mn 2合金鋼板， and the transaction was fair. With the increase of coke price， the cost of ductile iron in Shanxi， Henan， Shandong and other regions has increased. In addition， with the gradual release of downstream demand， the inventory of iron plants is not large， and iron plants have successively raised their prices. There are few iron foundries in Shandong， Jiangsu， Hebei and Shanxi， and the inventory remains low. As the coke price rises and the cost increases， the price of iron foundries rises again.
積み上げる時，合理的に積み上げ，優先的に置くべきである.
コンポンスプーDisadvantages: The pipe structure is loose， and it is not resistant to high pressure. It is only suitable for the production of small air conditioning copper pipes.
また，腐食されにくく，さまざまな環境に適応できます.低温と高温で正常に使用できるため，他の場所では何度も銅管を選択する必要があります.
レギン-土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.
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， 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，コンポンスプー低合金板， 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 * * *.
The composite method of three production methods of copper tube is also a high-tech production method for this method. It is a copper material containing impurities. Those copper materials， copper alloys and composite copper materials are put together by electrochemical reaction to produce a nanocrystalline copper material， and then the material is purified to produce copper tube materials.
Lets elaborate on the advantages of copper pipe materials: copper pipe floor heating refers to a heating method that uses hot water as the thermal medium， heats the floor， the service life of the floor heating tube will not be affected. Two. Copper pipe is a metal pipeo it is not easy to scratch. Therefore， high pressure resistance it is not easy to leak. Three. High temperature resistance， relative to any ordinary plastic pipe. Copper tube floor is warm and resistant to high temperature and pressure. Four. Long service life. Five.
When installing， the copper pipe has the advantages of low transportation cost， easy maintenance and small space occupation.
銅管の卓越した性能を持つ銅管は，現代の請負業者がすべての住宅商業住宅に水道管，暖房，冷却管を設置するための適切な選択となるような和の特性を持っている.
品質保証紫銅管の利点耐久性：銅は安定した化学財産を持ち，耐寒，耐熱，耐圧，耐食性と耐火性を体に集め，異なる環境で長期に使用することができる.
銅板，銅棒，銅管のつの主要な応用分野のうちつ：銅は医薬に用いられる.年代，中国の医学発明家劉同慶氏と劉同楽氏は銅が非常に強いsを持っていることを発見し，“；それに対応する& ;quot；癌抑制と，これは近い将来成功するだろう.
銅管の種類の生産方法の複合法もこの方法のハイテク生産方法である.不純物を含む銅材料です.これらの銅材料，銅合金，複合銅材料を電気化学反応により緒に置き，ナノ結晶銅材料を作製し，その後，この材料を精製し，銅管材料を作製した.
銅管は非鉄金属管であり，プレスと延伸のシームレス管である.銅管は良好な熱伝導性を持ち，頑丈で耐食性がある.環境温度に比べて割れないためすべての住宅商品住宅に水道管，熱供給管，冷房管を設置することが現代の請負業者の第選択となっている.
改革So far as the storage method of copper materials is concerned， we should properly keep the copper products we buy， extend the service life of copper and ensure its performance to avoid unnecessary losses.
After welding，コンポンスプーどうばん， it can be annealed at ~ ℃ to prevent "self cracking" by stress.
In the first ten days of May， 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，直ちに継ぎ手とニップの隙間にフラックスとフラックスを塗布しなければならない.配合面に分なフラックスを薄く塗布し，すぐに組み立てて，ほこりや汚れが毛細管隙間を汚染しないようにしなければならない.
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.
It is mainly used to manufacture electrical devices such as generators， buses， cables， switchgear， transformers， and thermal conductive devices such as flat plate collectors for heat exchangers， pipes， and solar heating equipment. Common copper alloys are divided into three categories: brass， bronze and white copper. Pure copper plate is a purplish red metal， commonly known as "copper plate"， "red copper plate" or "red copper plate".