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Yantai Yunsheng Petroleum Machine Fittings Co.,Ltd.
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About Us
The sucker rod couplings are manufactured from high quality Carbon steel AISI 5I40 or AISI 4135 in accordence with API Spec 11B standard, including class SM coupling, class T coupling and Sub coupling. Full Size coupling and Slim Hole coupling are availbale in 5/8占쏙옙��/4占쏙옙��/8占쏙옙��占쏙옙��d 1 1/8占쏙옙��
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5/8"*3/4"FS API Sub coupling
1 �� Type: T&SM
2 �� ...
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5/8"*3/4"SH API Sub coupling
1 �� Type: T&SM
2 �� ...
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1-1/8 "SH API Class SM coupling
1-Type: SM SH coupling
New: ...
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1-1/8 " FS API Class SM coupling
1-Type: SM FS coupling
New: ...
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3/4"*7/8"SH API Sub coupling
1-Type- T&SM
2-Material- Carbon steel AISI 5I40 ...
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3/4"*7/8"FS API Sub coupling
1-Type-T&SM
2-Material-Carbon steel AISI 5I40 or ...
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5/8"*3/4"SH API Sub coupling
1-Type- T&SM
2-Material- Carbon steel AISI 5I40 ...
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5/8"*3/4"FS API Sub coupling
1-Type- T&SM
2-Material- Carbon steel AISI 5I40 ...
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