Pre-welding of straight seam steel pipes : pre-welding includes seams and welds. 1. The joint (...
There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Diff...
Surface casing: install the oil casing head on the top, suspend and support the subsequent layer...
At present, the commonly used methods for welding steel pipes are electrode arc welding (SMAW), ...
1. The use of large-diameter straight seam welded steel pipes can be divided into oil well pipes...
1. Keep warm by smearing of anti-corrosion steel pipes : Mainly use uncertain insulation mater...
There is a big difference between thick-walled steel pipes and thin-walled steel pipes in terms ...
Coiled oil tubing initially gained a foothold in the market as a cost-effective wellbore cleanup...
1) Thin-walled stainless steel pipes and fittings should not be in direct contact with cement, c...
1. Metallographic method: Metallographic method is the main method to distinguish welded steel pipes...
Copyright © 2017-2021 Threeway Steel CO., LTD. All rights reserved. Sitemap
Other friends: Threewaysteel, Threeway-pipe
