Human Information Technology was established in 2002 . We are professional manufacturer of PDH multiplexer, protocol converter, optical modem and chassis etc. They are of high quality and stability.
   We are professional in the production of data-commutation, signal transmission and also the integrate circuit design. And recently we have developed some converters and PDH, which are with great advantages on technology and price. our products are well known on the market. We have keen certified by ISO9001(2000) .
   Customer satisfaction and perfect service is what we are going for.