mechanical seal includes: ma 0410x apart pump seal ma 0420x kettle seal ma 0430x other mechanical seal combined parts a) stationary ring b) rotary ring c) secondary seal d) spring and punched parts mechanical seal is capable for eccentric screw pump, beet flume pump, sugar juice recycle pump, non-clog type pump, waste water disposal pump, centrifugal pump, submersible ventilator, submersible beater, submersible electric pump, syrup pumpand other equipment has medium of ater, oil and weakly-corrosive. please log on our website for more details.