CNIS GB/T 223.38-85 Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-gravimetric method for the determination of niobium content. Формат поставки-PDF. Язык стандарта-Английский
Другие Стандарты CNIS
CNIS GB 3531-96 Low alloy steel plates for low temperature pressure vessels
CNIS GB/T 13403-92 Gaskets for large-diameter cabon steel pipe flanges
CNIS GB/T 9123.24-88 Steel pipe blank flanges with tongue and groove face for PN 1.6MPa (16 bar)
CNIS GB/T 9114.3-88 Hubbed screwed steel pipe flanges with raised face for PN 2.5MP (25 bar)
CNIS GB/T 223.32-94 Methods for chemical analysis of iron,steel and alloy. The hypophosphite reduct...
CNIS GB/T 9123.25-88 Steel pipe blank flanges with tonges and groove face for PN 2.5MPa (25 bar)