GB - Chinese national standards

Technical requirement for IP video terminal equipment - Part 1: terminal based on ITU-T H.323

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Rolling bearings - Double row cylindrical roller bearings - Boundary dimensions

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirements of 900/1800MHz TDMA digital cellular mobile network signaling system NO.7 ISUP

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirements of telephony routing over IP ( TRIP )

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirement of interworking between No.7 signalling and IP

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Technical requirements of adaptation layer of No.7 signalling interworking with IP MTP2 user adaptation layer

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Rare earth doped optical fibre - Part 1: Characteristics of double-cladding ytterbium-doped optical fibre

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Rare earth doped optical fibre—Part 2: Characteristics of double-cladding thulium-doped optical fibre

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Rare earth doped optical fibre—Part 3: Characteristics of double-cladding erbium-ytterbium co-doped optical fibre

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Rare earth doped optical fiber—Part 4: Characteristics of Erbium-doped optical fiber

Available languages: English, Chinese

Available design: electronic design (pdf), Print design