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Новости компании

08 2023-05: What are the causes of white rust and black spots?

Dark spots are formed by further oxidation of white rust. The main causes of white rust are:Poor passivation, passivation film thickness is not enough or uneven···

08 2023-05: What are the main causes of zinc layer shedding?

The main reasons for zinc layer shedding are: Surface oxidation, silicon compounds, cold bound emulsion is too dirty, NOF section oxidation atmosphere and prote···

08 2023-05: the coil weight is 5 tons. What is the length of the coil?

What is the length of the coil?

08 2023-05: What are the main defects of hot dip galvanizing?

Mainly: peeling, scratches, passivation spots, zinc particles, thick edge, air knife stripes, air knife scratches, exposed steel, inclusion, mechanical damage, ···

08 2023-05: usually cooling tower cooling ways are several?

There are two kinds: air-cooled and water-cooled.

08 2023-05: What are several forms of galvanized annealing furnace?

There are three kinds of vertical, horizontal and vertical annealing furnaces.

08 2023-05: What are the commonly used steel types of hot galvanized sheet?

Product categories: General coil (CQ), structural galvanized sheet (HSLA), deep drawing hot galvanized sheet (DDQ), baking and hardening hot galvanized sheet (B···

08 2023-05: Which two types of hot dip galvanizing can be divided into according to the different annealing methods?

It can be divided into two types of in-line annealing and out-of-line annealing, which are also called protective gas method and flux method.

08 2023-05: What kinds of galvanizing methods are there in the world at present?

There are three types of electrogalvanizing, hot-dip galvanizing and coating galvanizing.

08 2023-05: What is the main use of hot galvanized sheet?

Hot galvanized sheet is mainly used in construction.

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Сталь чжи сан

Zhishang steel co.Ltd,specializes in steel products,which mainly manufactures galvanized steel,galvalume steel,ppgl,ppgl and also can supply hot rolled steel, coldrolled steel,stainless,wire rod,h beam,steel pipe,etc.The company is committed to providing customers with high-quality and low-price steel products and strives tocreate value for custome···

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