CNIS GB/T 12237-89 General purpose industrial valves--Flanged and butt-weld end steel ball valves. Формат поставки-PDF. Язык стандарта-Английский
Другие Стандарты CNIS
CNIS GB/T 4223-96 Iron and steel scraps
CNIS GB/T 9113.19-88 Integral steel pipe flanges with tongue and groove face for PN 5.0 MPa (50 bar)
CNIS GB/T 14975-94 Stainless steel seamless tubes for structures
CNIS GB/T 9113.17-88 Integral steel pipe flanges with tongue and groove face for PN 2.5 MPa (25 bar)
CNIS GB/T 9123.32-88 Steel pipe blank flanges with ring-joint face for PN 5.0MPa (50 bar)
CNIS GB/T 5952-86 Carbon tool steel wires