API SPEC 5L-2007 (line pipe specification), compiled and issued by the American Petroleum Institute, is commonly used all over the world，Line pipe standard:API SPEC 5L-American Petroleum Institute Standard； GB/T9711-China National Standard。

Standard: API 5D Application: For well drilling

The Japanese industrial standard (JIS) developed by the organization is applicable to various industrial services and technologies, such as automobiles, metallurgy, ships and medical equipment.

Pipeline coating equipment and various kinds of coatings Selmers produces pipe coating equipment and equipment for various coatings, mainly for anticorrosion, insulation, flow efficiency and weight increase. Like a single sandblaster, pipeline coating equipment can also be used in a variety of settings: for internal and external applications, small and large diameter, low capacity and high capacity, and continuous or single operation.

EN 10219: Cold formed welded structural hollow sections of non-alloy and fine grain steels.

ASTM A672 standard specification for electric fusion welded steel pipe for high pressure service at moderate temperatures. This specification covers electrical-fusion-welded steel pipe for high-pressure service at moderate temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. An analysis of each mill heat of plate material shall be made, also, an analysis of the finished deposited weld material from each 500 ft or fraction thereof shall be made. The mechanical test requirements includes one tension test specimen to represent each lot of finished pipe, and one transverse-guided-weld-bend test (two specimens) to represent each lot of finished pipe. Also, radiographic examination shall be made on the full length of each weld.

Hot dip galvanized pipe molten matrix metal and the reaction of the iron alloy layer, so that the substrate and coating combination of both. Hot dip galvanized pipe is first pickled, the steel surface in order to remove iron oxide, after pickling, by mixing the aqueous solution tank for cleaning solution or ammonium chloride or zinc chloride, and then into hot-dip plating bath. Galvanized with coating uniformity, strong adhesion, long life and other advantages. Steel substrate occurs with molten bath complex physical, chemical reactions, the formation of corrosion-resistant zinc-iron alloy structure closely layer. Alloy layer and layer of pure zinc, steel base blend. Therefore it resistant to corrosion.