1. Definition Hot-dip galvanized pipe is a black pipe through pickling and then transferred to the molten zinc tank, zinc and steel pipe surface reaction to generate zinc-iron alloy, so as to achieve the effect of corrosion protection. Zinc Aluminum Magnesium tube is in the hot dip galvanized on the basis of the use of magnesium oxide, alumina, ...

The straight seam electric welded steel pipe is a steel pipe whose weld seam is longitudinally parallel to the steel pipe. During the production process, it carries out cold rolling or hot rolling steel plate or strip coil welding, and then carries out straight seam welding on the welding equipment to form a straight seam welded pipe. The weldin...

Galvanized pipe, also known as galvanized steel pipe, is divided into two kinds: hot dip galvanized steel pipe and pre galvanized steel pipe .Galvanized steel pipe can increase the corrosion resistance, prolong the service life. Galvanized pipe has a wide range of uses, in addition to the pipeline pipe for water, gas, oil and other general low p...

In the next 1-2 months, due to the traditional peak season of steel demand, the probability of the large area of pressure policy landing is not large. In fact, after the middle of August, there is no new policy to reduce output of square steel pipe further. In addition, after July, with the correction of ore and scrap prices, the long and short ...

Different from the collective strength of assets last year, since the second quarter of this year, the degree of market differentiation of welded steel pipe has been significantly aggravated, the trend of commodities and stocks, the trend of different sectors, the trend of different varieties of the same sector or the trend of differentiation be...