supply of quad lock polycarbonate seals under electricity test division rural dehradun , quad lock polycarbonate meter seal : , quad lock polycarbonate meter seal, two colour four no. anchor locking first lock pre lock along with length, anchors visible in left and right side facing portion straight with seven strand sealing wire connect male & female part of seal, first lock prelock seal having minimum length 230mm or more seal. seal size 32x23x5mm(+/-1mm), having upcl logo and division code etdr-ddn-2022 embosed. serial no. eight digit non repeating alphanumeric serial no. with laser engraved. polycarbonate seal should have ultra-voilet numering in semi circle shape term laser printing type (not screen printed) visible only uv light torch i.e. uv readable number in side of anchor part in orange/green colour.