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Shanghai Telephone Equipment Factory ( STEF ) , also called Shanghai Posts and Telecommunications Factory No.520, was establish on 20th May 1958. STEF is a leading factory for making digital switching system and other telephone equipment and is affiliated to China Putian Information Industry Group Company. STEF is a National second-class and Shanghai high-tech enterprise with good credit. STEF has got the ISO9002 Quality System Certificate.
STEF produces all kinds of telephone switching system, telecom terminals and telephone equipment. STEF has comprehensive capabilities in development and production. The main products of STEF and its subsidiary companies include : SP-30 series of super digital switching system, ISDX and JSY-2000-20 digital switching system, HA520,HW520 and HL520 " China Telecom " series of telephones, Cordless telephone. Incoming display telephone, HT09P/T, HT09P/T(2), HT09P/T(3) LCD Coin Payphone, intelligent platform public telephone, IC intelligent telephone, MPX and JPX series of distributing frame, AC/DC, DC- /DC High frequency switch mode power supply ,CDMA direct transmitting station, IP-stage System etc. STEF also has the advanced SMT assembling lines, Double wave soldering machine filled with nitrogen, Analogue caller, Computer controlled turret punch, Computer controlled jig grinder, Signal testing Equipment and other special and general manufacturing equipment, so that it is able to manufacture and process all kinds of modern products.
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QSC Hot line: 2004712172700
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