Detailed Product Description Sucker Rods' Name: Grade D Sucker Rods Specification: 3/4", 5/8", 7/ ... 1×106 Name: HY-type Ultra-high Strength Sucker Rods Specification: 3/4", 5/8",7/8" ... and 1-3mDifferent long pony rods≥42≥224≤-2209801176540≥1×106 Name: Polished Rods Specification: 1", 1 1 ... two kinds of polish rods including ordinary polish rods and surface quenching type polish rods which can satisfy the ...