CJ/T 522-2018 Traveling—bridge suction degritter for grit chamber in sewage treatment plant

CJ/T 3044-1995 The line grit scraper for sedimentation tank in sewage treatment plant

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 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 4942.1-2001 Classification of degrees of protection provided by enclosures of rotating electrical machines (IP code) GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined(IP code)—Classification 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 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/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 18613-2002 Limited values of energy efficiency and evaluating values of energy conservation of small and medium three-phase asynchronous motors GB 18613-2006 Minimum allowable values of energy efficiency and the energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2020 Minimum allowable values of energy efficiency and values of efficiency grades for motors JB/T 6392-2008 crane wheel JB/T 5000.12-1998 Heavy Machinery General Technical Specification for Painting JB/T 6392.1-1992 The match between the type of car wheels, the profile shape and the track of the crane truck JB/T 6392.2-1992 Crane car wheel technical specifications GB 50205-2001 Code for acceptance of construction quality of steel structures 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 50661-2011 Code for welding of steel structures 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