The standards given to various products significantly contributes towards increasing international trade, which in turn bridges the quality gap between the manufacturers, producers and buyers of different nations.


ASTM A135, identical with ASME SA-135, is the standard specification for electric-resistance-welded steel pipe.
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201 stailess stee pipe

201 Stainless Steel

Type 201 is an austenitic chromium-nickel-manganese stainless steel that was developed in the 1950’s due to worldwide nickel shortages.
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Tensile strength

The tensile strength of a material is the maximum amount of tensile stress that it can accept before failure (such as breaking or permanent deformation).
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ASME B 16.28 fittings

ASME B16.28

ASME B16.28 Standard covers ratings, overall dimensions, testing, tolerances, and markings for wrought carbon and alloy steel buttwelding short radius elbows and returns.
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ASME B16.9 Fittings

ASME B16.9 standard specification

ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).
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GB 3087 steel pipe

GB 3087 standard specification

GB 3087 standard is applicable to the manufacture of high-quality carbon structural steel hot-rolled (extruded, expanded) and cold drawn (rolled) seamless steel tubes for various structural low-pressure and medium-pressure boilers and locomotive boilers.
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