CJ/T 523-2018 Peripheral drive sludge scraper for radial flow sedimentation tank in water & sewage treatment plant

CJ/T 3042-1995 The scraper with peripheral drive for radial flow sedimentation tank in sewage treatment plant

GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined(IP code)—Classification GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors SJ 20893 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB 755-2000 Rotating electrical machines—Rating and performance GB/T 755-2008 Rotating electrical machines—Rating and performance GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 755.2-2003 Methods for determining losses and efficiency of rotating electrical machinery from tests(excluding machines for traction vehicles) GB/T 3768-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane GB/T 3797-2005 Electrical control assemblies GB/T 3797-2016 Electrical control assemblies GB 4053.3-1993 Safety requirements for fixed industrial protective railings GB 4053.3-2009 Safety requirements for fixed steel ladders and platform—Part 3:Industrial guardrails and steel platform GB 5226.1-2002 Safety of machinery—Electrical equipment of machines—Part 1:General requirements GB 5226.1-2008 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements GB/T 5226.1-2019 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system JB/T 2300-2018 JB/T 2300-2018 slewing bearing JB/T 2300-2011 JBT 2300-2011 Rotary bearing support JB/T 2839-2016 Motor brush holder and collector ring JB/T 2300-1999 bearing with rotating element JB/T 2839-2005 Motor brush holder and collector ring JB/T 5000.12-1998 Heavy Machinery General Technical Specification for Painting JB/T 2839-1992 RAA type brush gripper and its collector ring GB 50205-2001 Code for acceptance of construction quality of steel structures GB 50231-1998 General code for construction and acceptance of mechanical equipment installation engineering HB 6217-1989 JB/T 5000.12-2007 Heavy mechanical general techniques and standards-Part 12:Paint GB/T 755-2025 Rotating electrical machines—Rating and performance GB 50231-2009 General code for construction and acceptance of mechanical equipment installation engineering GB 50661-2011 Code for welding of steel structures GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB 4053.3-2025 Safety requirements for fixed metal ladders and platform—Part 3:Industrial guardrails and platform