... 4,API 5CT-1043, API 5L-0699 Linzhou Fengbao Pipe Co.,Ltd. as a seamless pipe manufacturer in the worldwide marketplace specializes ... firstly and balance paid against copy of Bill of Loading Packing of pipesVarnish coated, plastic caps protection, wrapped by steel ... 9001:2008 Quality system certification and API certification get passed. Manufacturing MethodHot rolled seamlessSize (OD)Casing:4-1/2”,5”, ...