
CHANGRENGke indasteri ea kabelo le khoebo e kopantsoeng, e thehiloeng ka 2005 .E shebaneng le tlhahiso ea lihlahisoa tse feletseng tsa boleng ba liphaephe le lisebelisoa tsa HDPE (ho tloha ho 20-1600mm, SDR26 / SDR21 / SDR17 / SDR11 / SDR9 / SDR7.4), le thekiso ea lisebelisoa tsa compression tsa PP, lisebelisoa tsa ho lokisa liphaephe, liphaephe tsa polasetiki joalo-joalo.
O na le ho feta 100 sete mela tlhahiso ea liphaephe .200 disete tse loketseng tlhahiso thepa. Matla a tlhahiso a fihla ho feta lithane tse likete tse 100. Setsi sa eona sa mantlha se na le lits'ebetso tse 6 tsa metsi, khase, dredging, merafo, nosetso le motlakase, letoto le fetang 20 le litlhaloso tse fetang 7000.
Lihlahisoa li lumellana le ISO4427/4437,ASTMD3035,EN12201/1555,DIN8074,AS/NIS4130 standard,' me e amohetsoe ke ISO9001-2015,CE,BV,SGS,WRAS.