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	GB/T 21839-2019 Test methods of steel for prestressing concrete - 英文版
	GB/T 20975.31-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry - 英文版
	GB/T 20975.30-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 30：Determination of hydrogen content—Heating extraction-thermal conductivity method - 英文版
	GB/T 20975.29-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry - 英文版
	GB/T 20975.28-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry - 英文版
	GB/T 18921-2019 The reuse of urban recycling water—Water quality standard for scenic environment use - 英文版
	GB/T 17101-2019 Hot-dip zinc or zinc-aluminium coated steel wires for bridge cables - 英文版
	GB/T 16597-2019 Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods - 英文版
	GB/T 13747.5-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 5：Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry - 英文版
	GB/T 13477.13-2019 Test method for building sealants－Part 13：Determination of adhesion/cohesion properties at variable temperatures - 英文版
	GB/T 12688.5-2019 Test method of styrene for industrial use—Part 5：Determination of the content of total aldehydes—Titrimetric method - 英文版
	GB/T 12688.1-2019 Test method of styrene for industrial use—Part 1：Determination of purity and hydrocarbon impurities—Gas chromatography - 英文版
	GB/T 8721-2019 The test method for tensile strength of carbon materials - 英文版
	GB/T 7739.13-2019 Methods for chemical analysis of gold concentrates—Part 13: Determination of lead， zinc， bismuth， cadmium， chromium， arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry - 英文版
	GB/T 6818-2019 Octanol（2-Ethyl hexanol）for industrial use - 英文版
	GB/T 6040-2019 General rules for infrared analysis - 英文版
	GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections - 英文版
	GB/T 5068-2019 Axles steel for railway locomotive and wagons - 英文版
	GB/T 4698.21-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 21: Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper and zirconium content—Atomic emission spectrometry - 英文版
	GB/T 4698.17-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 17:Determination of magnesium content—Flame atomic absorption spectrometry - 英文版
	GB/T 4232-2019 Stainless steel wire for cold heading and cold forging - 英文版
	GB/T 1431-2019 The test method for compressive strength of carbon materials - 英文版
	GB/T 908-2019 forged bars for dimensions,shape,weight and tolerances - 英文版
	GB 37485-2019 Minimum allowable values of energy efficiency and energy efficiency grades for submersible mixers of wastewater - 英文版
	GB 37484-2019 Minimum allowable values of energy efficiency and energy efficiency grades for precipitator - 英文版
	GB 37483-2019 Minimum allowable values of energy efficiency and energy efficiency grades for rotary aerator in wastewater treatment - 英文版
	GB 37481-2019 General technical specifications for vault doors - 英文版
	GB 37480-2019 Minimum allowable values of energy efficiency and energy efficiency grades for low ambient temperature air source heat pumps（water chiller） packages - 英文版
	GB 37479-2019 Minimum allowable values of energy efficiency and energy efficiency grades for ducted air conditioners - 英文版
	GB 37478-2019 Minimum allowable values of energy efficiency and energy efficiency grades of LED luminaires for road and tunnel lighting - 英文版

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