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Standard No.	Title	Price(USD)	Delivery	Status	Add to Cart
GB/T 38105-2019	Urban heating—Steel jacket prefabricated directly buried pipes and fittings with vacuum insulating layers	$310.00	immediately	valid,,2020-9-1
GB/T 38350-2019	Residential gas-fired heating and hot water appliances with auxiliary energy	$400.00	via email in 1~5 business day	valid,,2020-11-1
GB/T 38390-2019	Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Pressure sensing device	$400.00	via email in 1~5 business day	valid,,2020-11-1
GB/T 38585-2020	Technical specification of joint assembling for directly buried insulated pipeline of urban heating	$220.00	immediately	valid,,2021-2-1
GB/T 38588-2020	In-situ measurements of heat loss of insulating pipes for urban heat-supplying	$370.00	immediately	valid,,2021-2-1
GB/T 38594-2020	Water supply devices with superimposing pipe pressure	$370.00	via email in 1~5 business day	valid,,2021-2-1
GB/T 38595-2020	Safety and control devices for gas burners and gas - burning appliances-Particular requirements - Mechanical thermostats	$370.00	via email in 1~5 business day	valid,,2021-2-1
GB/T 38693-2020	Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Thermoelectric flame supervision controls	$430.00	via email in 1~5 business day	valid,,2021-2-1
GB/T 38705-2020	Classification and basic requirements for urban heat supply facilities operation safety information	$340.00	via email in 1~5 business day	valid,,2021-2-1
GB/T 38979-2020	Sanitary wares—Test method for flushing noise of toilet	$225.00	via email in 1~3 business day	valid,,2021-6-1
GB/T 39078.1-2020	Safety requirements for escalators and moving walks—Part 1:Essential safety requirements	$315.00	via email in 1~5 business day	valid,,2021-4-1
GB/T 39078.2-2022	Safety requirements for escalators and moving walks—Part 2: Safety parameters meeting essential safety requirements	$645.00	via email in 1~5 business day	valid,,2022-10-1
GB/T 39172-2020	Non-steel wire rope suspension means for lifts	$630.00	immediately	valid,,2021-6-1
GB/T 39246-2020	Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe	$315.00	immediately	valid,,2021-10-1
GB/T 39286-2020	Absorption heat exchanger	$255.00	via email in 1~3 business day	valid,,2021-10-1
GB/T 39287-2020	Closed expansion vessels	$225.00	via email in 1~3 business day	valid,,2021-10-1
GB/T 39288-2020	Thermal storage device with electrical input and thermal output	$375.00	via email in 1~5 business day	valid,,2021-10-1
GB/T 39434-2020	Technical requirement for ozone treatment recirculating cooling water for central air conditioning	$120.00	via email in 1~3 business day	valid,,2021-6-1
GB/T 39485-2020	Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Manual gas valves	$435.00	via email in 1~5 business day	valid,,2021-10-1
GB/T 39488-2020	Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Electronic type gas and air ratio control system	$375.00	via email in 1~5 business day	valid,,2021-10-1
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