Mining

ASTM A139 is a standard specification for electric resistance welded straight and spiral seam steel pipe manufactured using the arc welding process.

Alloy JIS G3441 steel pipe is an alloy steel pipe produced in accordance with Japanese Industrial Standards (JIS) and is mainly used in fields such as mechanical structures or hydraulic equipment.

GNEE steel is one of the large manufacturers for high quality API 5CT K55 Tubes. API 5CT K55 casing pipe is very similar to J55 Casing Pipe.

‌JIS G3463 Stainless Steel Boiler Tube‌ is a high quality stainless steel piping system specially designed for use in boilers and other high temperature, high pressure environments.