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Chinese Standard Classification Professional Classification ICS Classification Latest

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valid to be valid superseded to be superseded abolished to be abolished

Standard No.	Title	Price(USD)	Delivery	Status	Add to Cart
SY 5261-1991	Method for calculation of strength of pressure components of fire-tube heating furnace	$270.00	via email in 1~3 business day	abolished2010-05-01 ,2010-5-1,1991-12-1
SY 5262-1991		$210.00	via email in 1~3 business day	abolished2001-06-01,2001-6-1,1991-12-1
SY 5264-1991		$650.00	via email in 1~5 business day	superseded,1997-9-1,
SY 5265-1991		$530.00	via email in 1~3 business day	superseded,1997-9-1,
SY 5266-1991		$730.00	via email in 1~5 business day	superseded,1997-9-1,
SY 5267-1991		$240.00	via email in 1~3 business day	valid,,1991-12-1
SY 5267-2000	Determinationof the loss of crude oil in the oil field	$195.00	via email in 1~3 business day	abolished2010-05-01,2010-5-1,2000-10-1
SY 5268-1991		$490.00	via email in 1~3 business day	superseded,1997-9-1,
SY 5270-1991			via email in 1~3 business day	valid,,
SY 5271-1991		$944.00	via email in 1~5 business day	superseded,2001-6-1,
SY 5272-1991		$105.00	via email in 1~3 business day	superseded,2008-3-1,1991-12-1
SY 5273-1991		$690.00	via email in 1~5 business day	valid,,
SY 5274-1991			via email in business day	superseded,2001-6-1,
SY 5275-1991		$310.00	via email in 1~5 business day	superseded,2002-8-1,1991-12-1
SY 5276-1991			via email in business day	superseded,2001-6-1,
SY 5277-1991		$220.00	via email in 1~3 business day	valid,,
SY 5279.1-1991	Oil wellhead rated working pressure and nominal diameter range		via email in 1~3 business day	,,
SY 5279.2-1991	Oil wellhead flange type, size and technical requirements		via email in 1~3 business day	,,
SY 5279.3-1991	Oil wellhead flange gasket ring type, size and technical requirements		via email in 1~3 business day	,,
SY 5280-1991		$184.00	via email in 1~3 business day	superseded,2000-10-1,1991-12-1
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