TREATED AND CERTIFICATED - 280 BAGS BLANQ OPTIC TETRA PVO. RETURN OF MATERIAL WHICH IS IMPORTED AGAINST SELLER'S INVOICE NO. 3031819EX022 DTD. 12.04.2018 S.BILL NO. 4003551 DTD. 12.04.2018 B/L NO. MEDUMU008378 DTD. 23.04.2018