??Qatar_Delemil reverse osmosis membrane ??Delemil has become the largest domestic product specifications, the largest production scale, access to one of the largest membrane producer patented technology.Product quality has passed ISO9001 quality system certification and ISO14001 environment system certification. ??Contact us: Miss Zhang,Mobile: 8 6 1 8 0 0 1 3 2 3 5 9 9; TEL: 8 6-0 1 0 — 5 7 0 3 1 1 2 5/8 6-0 1 0 — 8 3 6 8 2 3 9 5 ; E - m a I l