衛生と健康：銅管中のプラスチック管の各種改質剤，添加剤，添加剤及びその他の化学成分.
私はありません銅管の保存方法がわかりません.
ヤンゴンWhen heating steel pipes， the temperature is slightly higher than when heating copper pipes.
The second of the five application fields of red copper plate T， distillation pots， brewing pots， etc.
バヤマーレ長期的にこのような状況を回避したい場合は，銅表面が深刻であるだけでなく，ヤンゴン6063アルミニウム管，通常の場合は洗浄することができるが，超音波処理や浸漬処理後，年以上空気中に保持することは大きな問題ではないため，この効果は非常に優れている.
溶接時には，吹管は鉛管に垂直であり，火炎は連続的に移動して，局所的な過熱と溶接剤が充填金属を添加する前に炭化しないようにしなければならない.
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銅棒河南銅棒は元だった.
In addition， it is not easy to be corroded and can adapt to various environments. It can be used normally at low and high temperatures， so copper pipes need to be selected for many times in other places.
{} The excellent performance of copper pipe The welded copper pipe has the characteristics of firmness and corrosion resistance， which makes it a suitable choice for modern contractors to install the water pipe heating pipe and refrigeration pipe in all residential commercial houses.
The blowing mouth of the welding tool should not be too small to avoid excessive concentration of heat.
小売り商If you want to make the copper surface become bright again， you can polish it with copper point solution. It can not only make the copper surface brighter， but also quickly remove the rust and oxide layer on the copper surface to restore the luster of the copper itself.
放置する時，異なる成分によって単独で保管し，混合してはならない.銅の表面には電解質がある可能性があるため，反応が起こり，特にゴムなどの他の材料と反応し，大きな影響を与えることがあります.
銅管の特徴は，水道管，熱供給管，冷凍管を取り付けることの第選択である.
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， asell as in a coiled tube way. The length of the copper tube can be longer if the coil is used. If the connection point is longer， 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.
資産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.
As the copper pipe is easy to process and connect， stability and reliability， and can save maintenance during installation.
見通しが楽観的で資源が逼迫しているため，部の製鉄所ではしばらく受注しないという.遼寧省の製鉄所は鋼材購入の意欲を高めた.製鉄所の納品が好調で原材料価格が上昇したため，ヤンゴンどうたい，鉄鉱石価格が上昇した.製鉄所は鉄鋼の生産意欲が高いため，鋳鉄資源が少なく，価格も上昇した.唐山の部の製鉄所では製錬用に少量の鋼材が調達され始めており，多くの製鉄所ではまだ様子見が続いている.コスト増加と需要の逐次放出を背景に，銑鉄市場は好調で，短期的には引き続き力強い運行が見込まれている.
ヤンゴンWhen welding， just add enough filler metal to fill the capillary gap. Too much filler metal will only form a ball at the bottom of the joint or run into the pipe.
他の地域の紫銅棒は基本的に唐山の価格動向に従い，その中で江蘇製鉄所の価格はより高くなり，下流価格の大部分が要求され，全体的な市場取引は公平である.呉氏鋼工場アンは受注に制限があり，市場資源が逼迫している.ほとんどの商人は売りたくない.山西鋼片市場のオファーはまちまちで，取引を達成するのは難しい.下流の顧客は受注意欲が弱いため，慎重に様子見の姿勢を持っている.あらかじめ現在，鉄鋼市場は& ;quot；ゴールド位& ;quot；シーズン.市場は将来の市場に対して良好な予想を持っており，ヤンゴン6061アルミニウムストライプ，価格を支持する意欲が強い.来週，唐山主流鋼片の価格はさらに高くなる見通しだ.
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.