... operationSpec.Filter areaMaterialForm4501²--30²PP, Steel compound rubberBox, plate-frame63010²--40²PP, Steel compound rubberBox, plate-frame 2. X ... .Filter areaMaterialForm63015²--40²PP, Steel compound rubberBox, plate-frame87040²--100²PP, Steel compound rubberBox, plate-frame3. X AM ... frame1000100²--180²PP, Steel compound rubberBox, one plate one frame1250130²--300²PP, Steel compound rubberBox4. X AM J ...