◆ Muaj ntau yam khoom lag luam, suav nrog TPO, PVC EPDM, EVA, HDPE Geotextile.etc.
◆ Txhua yam ntawm daim nyias nyias, suav nrog kev txhawb nqa, rov qab fleece, xuab zeb coated, nws tus kheej nplaum, taug kev board.etc.
◆ Txhua yam khoom siv muaj, suav nrog prefabricated, sealing thiab fasteners.
◆ Tsis muaj kev txhawj xeeb rau txhua qhov taw tes ntawm qhov zoo, tus nqi, pob, khoom xa tuaj, xa khoom, lav, kev pabcuam .etc.