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Standard No.	Title	Price(USD)	Delivery	Status	Add to Cart
NB/T 10522.1-2021	Automatic waterproof door for mining- Part 1: Mechanical devices	$360.00	via email in 1~5 business day	valid,,2021-4-1
NB/T 10522.2-2021	Automatic waterproof door for mining- Part 2: Electro-hydraulic control system	$225.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10522.3-2021	Automatic waterproof door for mining- Part 3: Code for engineering design, construction and acceptance	$240.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10522.4-2021	Automatic waterproof door for mining—Part 4:Technical regulation for operation and maintenance	$150.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10523.1-2021	Mechanical properties test method of shearer loaders—Part 1:laboratory experiments	$555.00	via email in 1~5 business day	valid,,2021-4-1
NB/T 10524-2021	Experimental test method for shearers-scraper convepers-hydraulic supports matched performance in fully mechanized mining face	$360.00	via email in 1~5 business day	valid,,2021-4-1
NB/T 10525-2021	Method of type symbolization for oil shale retorting furnace	$150.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10526-2021	Classification for content of aluminum in coal	$100.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10527-2021	Code for construction of shaft grouting in coal mine	$225.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10528-2021	Technical specification for census of goaf area in coal mine	$495.00	via email in 1~5 business day	valid,,2021-4-1
NB/T 10529-2021	Coal mine water-cooling adjustable-speed magnetic coupling	$255.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10530-2021	Methods for energy saving of shearers	$285.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10531.1-2021	Methods for energy saving of roadheaders-Part 1:longitudinal roadheader	$285.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10532-2021	Technical regulation on monitoring of land reclamation quality for opencast coal mines	$255.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10533-2021	Technical specification of coal mining subsidence area restoration	$240.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10534-2021	Compressed refrigerating installation used in coal mine	$180.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10535-2021	Laser rangefinder for coal mine	$225.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10536-2021	Peep instrument for mine	$285.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10537-2021	Monitor for mine	$240.00	via email in 1~3 business day	valid,,2021-4-1
NB/T 10538-2021	Iris recognition instrument for mine	$240.00	via email in 1~3 business day	valid,,2021-4-1
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