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Ylong control system and 4 series of window openers have passed the test and are awarded five certificates by China National Supervision and Test Center.
2008-08-05 15:26:43
(has been browse 629 times)
Ylong EL1100 Control System ( Certificate No. 20081263 )
Ylong EL-C Chain Window Opener ( Certificate No. 20081263 )
Ylong EL-T Chain Window Opener ( Certificate No. 20081264 )
Ylong CG Rack Window Opener ( Certificate No. 20081265 )
Ylong CZ Screw Window Opener ( Certificate No. 20081266 )
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