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I want to know the price of domestic copper pipes.
Electrolytic purification of copper: crude copper (containing 99% copper) is made into thick plate in advance as anode, pure copper is made into thin plate as cathode, and mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as electrolyte. After electrifying, copper is dissolved into copper ions (Cu) from the anode and moves to the cathode. After reaching the cathode, it gains electrons and precipitates pure copper (also called electrolytic copper) at the cathode. Impurities in crude copper, such as iron and zinc, which are more active than copper, will dissolve into ions (zinc and iron) with copper. Because these ions are not easy to precipitate compared with copper ions, they can be prevented from precipitating on the anode as long as the potential difference is properly adjusted during electrolysis. Impurities that are not as active as copper, such as gold and silver, are deposited at the bottom of the electrolytic cell. The copper plate produced by this method is called "electrolytic copper", which is of high quality and can be used to manufacture electrical products. Electrolytic copper can be further processed into very fine electrolytic copper powder.

(Hint: The price of this copper tube is updated daily)

1# electrolytic copper Cu _ Ag >;; =99.95% standard: GB/T 467- 1997

name

Up-down interval

average price

High tide and low tide

time

date

1# electrolytic copper

200 to 350 people

275

10

10:30

May 2 1

220 to 350

285

20

1 1:00

May 2 1

Description of incremental discount:

Spot premium: refers to that the spot price on that day is higher than the real-time selling price of Shanghai futures on that day.

Spot discount: refers to that the spot price on that day is lower than the real-time selling price of Shanghai futures on that day.

Paste expansion interval: refers to the paste expansion interval of leveling copper and rising copper, excluding the paste expansion interval of wet copper.

Price fluctuation: the quotation is divided into three time periods, and the price fluctuation in each time period is compared with the average price fluctuation in the previous trading day at 1 1: 30.

1# electrolytic copper

Latest price: 54 150-54450

Average price: 54300

Up and down: 875

Update date: May 20th.

1# electrolytic copper

Premium: (liter) 220- (liter) 350

Represents the trading price range of standard, imported and high-quality cathode copper (including tax)

grade

price range

average price

High tide and low tide

Incremental discount

date

Pingshui copper industry

54 150-54270

542 10

9 10

180- (L) 220

May 20(th)

High quality copper

54200-54450

54325

850

250 to 350

May 20(th)

Wet copper

54000-54 150

54075

875

( 1) 120-( 1) 150

May 20(th)

Grade description:

High quality copper: imports: Chile CCC, Chile ENM, Chile AE, Poland Daban, Japan (Mitsubishi, OSR, SR), Peru, etc.

Domestic: Guiye (Jiangtong), Tiefeng (Yuntong), Golden Dolphin, Jinchuan High Purity, Tongguan (Tongdu).

Pingshui copper: imports: Chile CCC-P, Poland Small Plate, South Korea (ONSAN), Zambia, Philippines, USA, Brazil Copper, Norway,

Belgium, Kazakhstan, India, Indonesia, etc

Domestic: Dajiang (Daye), Shangye, Tiger Brand (Dachang), Jinchuan, Lu Hong (Baiyin), Ningbo Jintian, Datong, Zhongtiaoshan, Huludao, Sanjian (Peng Hui) and Xiangguang.

Wet copper: Chile CDA, Chile CMCC, Chile MB, Chile MV, Chile QB, Peru SPCC, Australia ISA, etc.

brand

price range

average price

High tide and low tide

Incremental discount

date

Guixi

54300-54450

54375

875

300 to 350 pounds

May 20(th)

Precautions:

The copper price in Shanghai spot market refers to the main trading price range of cathode copper in the main trading hours of the day. The lower limit is the lowest price of flat copper, and the upper limit is the highest price of premium copper. It was determined after collecting the prices of major markets and production and business units in the city. The spot copper price is based on the real-time selling price of copper futures on the current day of the month, and with the increased discount amount, the spot copper price generally fluctuates with the change of the real-time selling price of futures.

region

price range

average price

High tide and low tide

date

Eastern China

54000-54400

54200

700

May 20(th)

North China

54 100-54700

54400

950

May 20(th)

South China

54200-54400

54300

600

May 20(th)

Region description:

East China price: mainly choose the mainstream transaction price range of Shanghai and Shandong.

North China price: mainly select the mainstream transaction price range of Tianjin on that day, and refer to the transaction prices in surrounding areas.

South China price: mainly select the mainstream transaction price range in Guangdong on that day, and refer to the transaction prices in surrounding areas.

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Copper 24-hour chart-denominated in USD/GBP

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