Double face mechanical seal: 1. Factory outlet 2. Competitive price 3. MOQ: 1pcs 4. Over 20 years production experienc Double face mechanical seal JG-224U 1. Seal characteristics:1) Unbalanced2) Double face seal3) Corrosion-resistant seal4) Widely used in IS02858 chemical pump 5) Multiple springs2. Application:Medium: Weak acid and weak base liquidQEM, design service and buyer label offer ...