Generally， oxygen aylene is used as the gas source and LPG welding tool is used for heating. The torch of the welding tool shall face the joint and then continuously heat the whole joint. This will avoid excessive local heating.
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， 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.
センポルナThe copper pipe has high welding precision， fast production speed， good surface finish and beautiful appearance. Therefore， it is widely used in precision welding industries such as glasses， hardware， electronics， accessories， sanitary ware and kitchenware.
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.
千葉When stacking， it shall be stacked reasonably and placed first.
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.
水分離器の材料は同じで，膨張係数は同じで，水分離器との接続は漏れにくい.適用範囲：銅管はプラスチック管より高いため，床暖房システムのコストが高い.
At the opening this morning， the current market price of * mm Linyi copper bar was yuan (ton price the same below)， the * mm copper bar was yuan， stability and performance， and can save maintenance.
お客様 です小径パイプでは，充填金属を使用する場合，充填金属の長さはパイプの直径に等しく，溶接ピットを充填するのに分であることができます.赤色科学普及のつの応用分野のつr板T ，赤銅棒と赤銅管：銅は電気と電子業界の中で も広く使用され，総消費量の半分以上を占めている.各種ケーブルと電線，電機と変圧器，スイッチとプリント配線板に使用する，機械と輸送車両の製造では，センポルナアルミニウム排冷凍庫，工業用バルブと部品，計器，センポルナアルミニウム板，滑り軸受，金型，熱交換器，ポンプなどの製造に使用されています.
The market opened today. Although the performance of Zitong Pai futures was modest the overall market has stopped. The market mentality has not changed much sincekend. The price is stable， but some specifications are subject to negotiation， and the negotiation range is about - yuan. The overall rhythm of the market is stable and cold. In the middle of winter， the overall market in Northeast China has entered the traditional off-season， and the overall market has ended with little improvement. All companies are selling goods. The inventory level in Shenyang is very low due to the inventory clearing， and all construction sites have been closed. In addition to the transportation pressure brought by the low temperature， the market was bleak.
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.
私はありません銅管の保存方法がわかりません.
アプリケーションの流れ防湿紙で包んで防湿保護することができます.酸化をある程度防ぐこともできます.亀裂や深刻な腐食が見つかった場合は， and move the flame nozzle back and forth continuously between two points. Do not touch the flame directly with the flux.
硬質銅管は延伸または押出後に人工的に処理されていないので，自然に形成することができる.この時点で，銅管の組織形式はいっぱいになっています.この銅管は割れやすく，曲がるのに適していない.そのため硬銅管は通常まっすぐである.
センポルナDisadvantages: low output， which is the development direction of copper tube industry in the future.
Copper pipe has the characteristics of high production cost and high price. Extrusion copper tube process is a stable and excellent copper tube production method at home and abroad at present. Only the copper tubes produced by this process are more suitable for the field of heating and ventilation， and is the choice for the installation of water pipe， heat supply and refrigeration pipe.
まず，倉庫を建設しなければなりません.倉庫内の温度は通常-°に維持しなければならない.C，湿度は正常でなければならない.部屋は換気を保つべきだ.
