CHANGRONGndi kampani yogwirizana ndi makampani ogulitsa magawo ndi malonda, yomwe idakhazikitsidwa mu 2005. Imayang'ana kwambiri pakupanga mapaipi ndi zolumikizira zabwino kwambiri za HDPE (kuyambira 20-1600mm, SDR26/SDR21/SDR17/SDR11/SDR9/SDR7.4), komanso kugulitsa zolumikizira za PP compression, makina olumikizira pulasitiki, zida zamapaipi ndi cholumikizira chokonzera mapaipi ndi zina zotero.
Ili ndi ma seti opitilira 100 opangira mapaipi okhala ndi zida zolumikizira. Mphamvu yopangira imafika matani opitilira 100,000. Yaikulu ili ndi makina 6 amadzi, gasi, kupukuta, migodi, kuthirira ndi magetsi, mitundu yopitilira 20 ndi mitundu yopitilira 7000.
Zogulitsazi zikugwirizana ndi muyezo wa ISO4427/4437, ASTMD3035, EN12201/1555, DIN8074, AS/NIS4130, ndipo zavomerezedwa ndi ISO9001-2015, CE, BV, SGS, WRAS.



