We Haixin Group locals SINOPEC ( 2nd largest) shengli oil field in China My YM sukkersu at yahoo com, have one manufacturer base of Drill pipe with API 5D Certificaiton, and one trading branch which supply sucker rod, polish rod with D, K , KD, HL, HY Grade; According API Spec 11B STD.

SUCKER ROD: SIZE 5/ 8' ' X 25 FEET, GRADE D, API STD

C/ W COUPLING

SUCKER ROD: SIZE 3/ 4' ' X 25 FEET, GRADE D, API STD

C/ W COUPLING

SUCKER ROD: SIZE 7/ 8' ' X 25 FEET, GRADE D, API STD

C/ W COUPLING

Nominal value( in)

5/ 8

3/ 4

7/ 8

1

1 1/ 8

1 1/ 4

Mechanical properties

1
Class-K 620MPad

tensile strengthd793MPa

2
Class-C 620MPad

tensile strengthd793MPa

3
Class-D 793MPad

tensile strengthd965MPa