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Multi-spring Mechanical Seals RO-A for Chemical Pumps. High Pressure Resistance: Designed to withstand working pressures up to 1.0 MPa safely. Customizable Stationary Ring: Stationary ring specifications can be tailored according to customer requirements. Fast Delivery for Standard Models: Standard products can be delivered within one week due to large stock availability. Free Sample Availability: Free samples provided for quality testing, with freight collect shipping. Comprehensive Quality Compensation: Company covers compensation for product quality issues or transport damage. Low Minimum Order Quantity: Minimum order quantity is only 5 pieces for regular models.