SY/T 6478-2017 "YouTube and casing surface platings technical conditions" stipulates the YouTube and casing surface autocatalytic nickel-phosphate chemical platings and nickel-tungsten alloy platings manufacturing process, technical requirements, detection methods, inspection rules, marking, Encasement, transportation and storage content. The standard applies to the painting and acceptance of the inner and outer surfaces of oil pipes. Miscellaneous surface platings produced by electroless plating and Eletroplating processes can also refer to this standard for implementation. The cited documents include determination of nickel content in steel and alloys, comments on adhesion strength of metal coatings, casing in the oil and gas industry, YouTube and pipeline thread processing, etc., to ensure that platings mass and performance meet requirements.