215.9 mm PDC Beijing Superior Drilling Equipment Co., Ltd. Base Info Model NO.:PDC 215.9mmMaterial:DiamondUsage:Well DrillingTrademark:FEILONGTransport Package:Metal BoxSpecification:215.9mmOrigin:ChinaHS Code:82071910 Description Pre:PDC Coring Bit Next:Roller Cone 12 1/4 (IADC537)