Hangzhou Zongju Optical Equipment Co., Ltd. ili ndi likulu lake ku Hangzhou, China. Ndife akatswiri othandizira okhazikika pakufufuza, kupanga ndi kugulitsa zamagetsi zamagetsi zamagetsi ndi zida zama telefoni.

Zongju amapereka zida zingapo zama fiber. Malo omwe timagulitsa kwambiri ndi awa: Zida zamagetsi zopanda zida, zida zoyeserera polojekiti ndi zida, ndi zina. Zamgululi zimagwiritsidwa ntchito kwambiri pamaukonde am'magawo, kusewera katatu ndi FTTx, kupereka zinthu zabwino kwambiri komanso zoyenera pamaneti.