20mm Gi Hot Dip Galvanized Steel Pipe Tube Round Q345 For Construction

Hot Dip Galvanized Steel Pipe / GI pipe Pre Galvanized Steel Pipe Galvanized Tube for Construction

In order to improve the corrosion resistance of steel pipe, the ordinary steel pipe was galvanized. Galvanized steel pipe is divided into hot dip galvanized and electric dip galvanized, hot dip galvanized layer thick, electric dip galvanized cost is low, the surface is not very smooth. Oxygen blowing welding pipe for steel blowing oxygen pipe, generally with small diameter welded steel pipe, specifications by 3/8-2 inches of eight. Made of 08, 10, 15, 20 or 195-Q235 steel strip, in order to prevent corrosion, some of the effective aluminizing treatment.

Galvanized pipe adopts sulphate galvanized iron alloy technology, which is perforated directly between the grooves in the production line without any out or overflow of the solution. The production process is composed of a circulating system. The solution of each tank, namely acid and alkali solution, electroplating solution, light and passivation solution, can only be recycled and reused without leakage or discharge to the system. There are only 5 cleaning tanks on the production line, which can be recycled and discharged regularly, especially if passivation is not cleaned without waste water.

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About Us:

SHANDONG TONGMAO SPECIAL STEEL CO.,LTD is reputed at supplying stainless steel pipe,carbon steel seamless pipe,alloy steel pipe,hot-rolled steel pipe,cold rolled steel pipe,galvanized steel pipe,welded steel pipe,precision steel pipe,also supply steel plate,steel coil and lead sheet etc.
Our Company combined production,trade,the development of new products and services together,is one of the provincial large-scale iron and steel enterprises.Factory products standards are qualified to meet ISO/GB/ASTM/EN/BS/JIS etc.
The company in the long-term development process,we are in cooperation with Baosteel Group,Tianjin Steel Group,Baotou Steel Group,Panzhihua Iron and Steel Group,Taiyuan Iron and Steel Group,Anshan Iron and steel Ling,Daye Steel Group and other well-known domestic mills,and established long-term friendly cooperative relations with not only the domestic groups,but also abroad relations,Assab special steel,Japan's Hitachi,Japan Datong special ,and Germany steel,special steel,Austria special steel and other well-known foreign groups.
Our company insists the principle of honesty and trustworthiness,has received trust and support from both the domestic and foreign manufacturers.
We will always adhere to the belief of credibility is the life to develop international market,and try our best to be skilled,highly responsible team ,through win-win cooperation,to meet the brilliant tomorrow!

FAQ:
Q:Can you send samples?
A:Of course, we can send samples to all parts of the world.

Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao ports, you can choose other ports according to your needs.

Q:What are the certifications for your products?
A:We have ISO 9001, SGS, EWC and other certifications.

Q:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be delayed if the demand is extremely large or special circumstances occur.

Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.