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Picture	Titel	Update
	API sucker rod coupling, class SM It is made of good quality steel alloy 40 Cr and processed with some special technology, coated a layer of abrasion-proo
	API sucker rod coupling Yantai Yunsheng Petroleum Machine Accessories Co. Ltd., founded in 2005, is a professional manufacturer of API Spec 11B
	sucker rod coupling Smoothness: 3.1*10-3 Coat Thickness(in): 0.01in ~ 0.02in Basic hardness: HRC 16-23 Surface Hardness: HRC 55-62 Hole rate
	sucker rod coupling for drilling Quick DetailsMaterial:Carbon SteelTechnics:ForgedType:CouplingPlace of Origin:Shandong China (Mainland)Model Number:YSPJ
	API 5/8" Class T Full Size Sucker Rod Coupling 1)Material: AISI 5140 2)Standard: API Spec 11B3)Specification:O.D.: 1-1/2”(38.10mm)I.D.: 15/16”(23.81mm)Length: 4”(10
	API 5/8” Class T Slim Hole Sucker Rod Coupling API 5/8” Class T Slim Hole Sucker Rod Coupling1)Material: AISI 5140 2)Standard: API Spec 11B3)Specification:O.D.: 1-1/4
	API 3/4” Class T Full Size Sucker Rod Coupling API 3/4” Class T Full Size Sucker Rod Coupling1)Material: AISI 5140 2)Standard: API Spec 11B3)Specification:O.D.: 1-5/8
	Chinese specialty API Class T sucker rod coupling 1.Meterial: AISI 51402.Standard:API 11B3.High quality and reasonable priceCompany profile:Yantai Yunsheng Petroleum Mach

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