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CNIS GB/T 9112-88 Types for steel pipe flanges CNIS GB/T 9116.17-88 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN2.5... CNIS GB/T 9056-88 Steel rulers CNIS GB/T 8923-88 Rust grades and preparation grades of steel surfaces before application of pain... CNIS GB/T 2518-88 Continual hot-dip zinc-coated steel sheets and strips CNIS GB/T 2520-88 Tin electroplated steel sheets and strips CNIS GB/T 247-88 General rule of acceptance, package, mark and certification for steel plates(sh... CNIS GB 712-88 Hull structural steel CNIS GB 8903-88 Steel wire ropes for elevators CNIS GB/T 711-88 Hot-rolled quality carbon structural steel plates and wide strips CNIS GB/T 8749-88 Hot-rolled quality carbon structural steel strips CNIS GB/T 8706-88 Steel wire ropes--Terminology CNIS GB/T 8707-88 Steel wire ropes--Standard designations CNIS GB/T 8713-88 Inside diameter required precision seamless steel tube for hydraulic and pneuma... CNIS GB/T 2103-88 General provisions for checking,packing,marking and quality certification of st... CNIS GB/T 3640-88 Plain carbon steel pipes for electric wire CNIS GB/T 2104-88 Steel wire ropes--Packing,marking and certificate--General requirements CNIS GB/T 8731-88 Free-cutting steel--Technical requirements CNIS GB/T 699-88 Quality carbon structure steel--Technical requirements CNIS GB/T 3077-88 Alloy structure steel--Technical requirements CNIS GB/T 223.64-88 Methods for chemical analysis of iron, steel and alloy--The flame atomic absorp... CNIS GB/T 223.3-88 Methods for chemical analysis of iron, steel and alloy--The diantipyrylmethane ... CNIS GB/T 223.4-88 Methods for chemical analysis of iron, steel and alloy--The volumetric method f... CNIS GB/T 223.62-88 Methods for chemical analysis of iron, steel and alloy--The butyl acetate extra...