Oil casing is a pipe used in oil and natural gas wells, and its standards usually cover the material, size, manufacturing process, inspection and test.

Boiler tubes are specialized tubes designed for use in boilers, which are vessels used to heat water and generate steam for various industrial processes, heating applications, and power generation.

Oil pipelines are pipelines that transport crude oil and natural gas from oil and gas formations to the surface after drilling.

ASTM A210/A210M is a standard specification for seamless medium-carbon steel boiler and superheater tubes.

Hot-dip galvanized pipe, in order to improve the corrosion resistance of steel pipes, general steel pipes are galvanized.Hot-dip galvanized pipe, in order to improve the corrosion resistance of steel pipes, general steel pipes are galvanized.

The length requirements for seamless pipes can vary based on the specific application, industry standards, and manufacturing capabilities.