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$18.00$36.00
Decorated cement shingles for dwelling roofs (Amendment 1)..
$8.00 $16.00
Copper and copper alloy covered electrodes..
$20.00 $39.00
Bleaching powder and high test hypochlorite..
$9.00 $18.00
Microscopic testing method for the non-metallic inclusions in steel (Amendment 1)..
$8.00 $15.00