cold galvanized steel pipe which is galvanized, the method is used to protect the galvanized metal to prevent corrosion. to this end the use of the zinc coating filler. using any coating method to coat the surface to be protected, forming a zinc coating after drying filler. having a conten
on march 21, 2016, foreign business elite from bestar accompanied with 352 companies around the world participated in international oil and gas exhibition for two days. the exhibition includes 12 major industry with 32 kinds of categories, which is is currently one of the most influential in oil,
casing tubing drill pipe is one of the seamless casing and tubing specialties of octg in the category of seamless products that are specially made. casing tubing drill pipes have a diameter of 2-3/8-13-3/8inches and thickness of 0.19-1.00inches. drill pipe of this kind are of the steel grade qual
tubing and casing strings are the main parts of the well construction. all wells drilled for the purpose of oil or gas production (or injecting materials into underground formations) must be cased with material with sufficient strength and functionality. tubing and casing are key portions of octg
induction weldingthe two main aspects of hf welding are processes and power supplies. each of these can be broken down further into subcategories. processes. the two hf welding processes are hf contact and hf induction. in both processes, the equipment that provides the electrical current
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