... -120 In addition to Mo HG/T21618-1998 Screen Used for gas-liquid filter (knitted wire mesh separators) specifications are: SP, DP, HR ... filter specifications are: HG5-1404, HG5-1405, HG5-1406, Standard No. Shanghai Q/SG12-1-79. Standard provides for three types of gas ... -79, Q/YSZZ-88-91 standard production. 2) Used for gas-liquid screen demister filter according to SP, HP, DP, HR network type ...