This standard is formulated to ensure the quality of extruded polyethylene anti-corrosion layer of buried steel pipeline, extend i

This specification is formulated to guide the construction and acceptance of pump installation projects and ensure the quality and

This specification applies to the pretreatment of steel surfaces before painting. SY/T 0407-1997 Specification for pretreatment of

This national standard is applicable to the construction and acceptance of direct and indirect heating furnaces of various types i

This specification applies to the installation and acceptance of crude oil pump groups. The oil pump used is a centrifugal oil pum

This standard applies to the design, material inspection, construction and acceptance of buried steel pipeline anti-corrosion proj

This standard applies to the design, construction and acceptance of epoxy fiberglass lining anti-corrosion engineering for steel s

This recommended method is applicable to pipeline crossing railway and highway construction, and also applies to railway or highwa