Name: sucker rod coupling
Material: carbon steel, stainless steel
Connection Type: Male, female
Size: from 3/4" to 1" slim hole full size
Technics: hot rolling
Grade: T,SM
Name: sucker rod coupling
Material: carbon steel, stainless steel
Connection Type: Male, female
Size: from 3/4" to 1" slim hole full size
Technics: hot rolling
Grade: T,SM