ShouGuang Petroleum Machine Accessories Co., Ltd

1.)material :*0Cr or other2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in

Sucker rod couplings with wrench flat 1) Coupling Material: *0Cr *5# *5CrMo 2) Main specification:

1.)material :*0Cr or other 2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in

1.)material :*0Cr or other 2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in

1.)material :*0Cr or other2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in

1.Coat Thickness( in ): 0.*1in*0.*2in 2. Surface hardness: HRC****2 Basic hardness HRA****2 3.L

1.)material :*0Cr or other2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in

1.)material :*0Cr or other2.)standard: API SPEC*1B 3.)Feature: 1.Coat Thickness( in ): 0.*1in*0.*2in