... and timely contact with us for better feedbacks.2) Please do not damage problem products, if necessary, Send the products ... and vegetable juice, medicine, oral official, edible oil, edible vinegar, instant noodles, colloid, petroleum, chemical industry, electric power, water treatment, ... payment, if need to be produced, 7-15 days after we get the prepay. Q2: How is the quality of the filters ...