API 11b Sucker Rod Roller Guide Sucker Rod Wheeled Roller Guide Roller Centralizer Shandong Seaco Machinery Equipment Co., Ltd. Certification:APIStandard:ASME, ANSI, GB, API8cSurface Treatment:Spray-PaintManufacturing Process:ForgingMaterial:Carbon SteelSize:60mm Base Info Model NO.:Sucker rod roller guideAdvantage:Wear ResistantLength:125-600mmTransport Package:Standard Export PackageTrademark:SEACOOrigin:Shangdon ChinaHS Code:84314310Production Capacity:100 Description Overview Product DescriptionProduct ParametersDetailed PhotosCompany Profile Pre:20 Inch Cutter Suction Dredger Next:API 6A Kelly Valve / Kelly Cock / Drill Pipe Safety Valve