Bi Di Gauge Pig Home Bi Di Gauge Pig Bi Di Gauge Pig Plates made of aluminium will be attached to Bi Di Pig Utility Gauge pigs generally used to measure the condition of the pipeline After Pigging Gauge plates received without damage will be treated as positive and gauge plate with dent or damage will be treated in other way Gauge plates are replication of Go / No go gauge, provides results in simple way