GY GY/T204-2004 Specification ofcustomerservicefor CATV 2004-12-09 2005-03-01
GY/T 204-2004
GY/T 204-2004
GY/T 204-2004 GB/T 7401-1987 GB/T 16463-1996 GY/T 106 3 3.1 customer service 3.2 CATV broadcast network 行业标准 3.3 operator of CATV broadcast network 3.4 3.5 customer service representation 3.6 severe malfunction 5 3.7 general malfunction