corrigendum : supply of cable type flexible permanent magnetic , cable type flexible permanent magnetic yoke (pmy) for magnetic particle testing, handy in u e and flexible and up to 25 kg of lifting weight at 100 mm pole spacing. lifting power: lifting power of pmy shall be minimum 20 kg with pole spacing of 75-150 mm as per rdso specification: rdso smi no: rdso/2 017/el/smi/0311 rev(o) dated : 25.08.2017. make:- magnaflux/ eec/ ferrflux/ arora/pmc or similar. note:- the firm should clearly mention make/brand model /lifting power in offer. scope: permanent magne tic yoke shall be capable of testing with dry powder / spray magnetic ink / wet magnetic powder in both vis ible or dark light. a permanent magnetic yoke should come with a test /calibration certificate from an accep table laboratory or manufacturer. [ warranty period: 30 months after the date of delivery ] ]