bids are invited for diamond core drilling accessories mse hq core lifter , hq shut off valve , hq core case , nq landing ring , hq landing ring , hq centralizer , t-8 thrust bearing , t-6 thrust bearing , t-10 bearing , t-113 bearing , nq lifting dog , nq latches with spring , 51115 thrust bearing , 6309 ball bearing , 3210 ball bearing , 51113 thrust bearing , 51211 thrust bearing , 25k hi-tech water swivel wash pipe , 25k hi-tech water swivel packing , crelious water swivel wash pipe , crelious water swivel packing , nq shut off valve , nq centralizer , nq guide and locking coupling , hq guide and locking coupling total quantity : 420