1. Competitive Price & High Quality
2. Up to API 11B Standard.

We, Yantai Yunsheng Petroleum Machine Accessories co., Ltd, Located in Yantai , Shandong,  we welcome all the customers to visit our factories and looking forward to receiving your enquiry and further news. We will be your right partner in China

   Introduction:  
 1.Name:Oilfiled suck rod  couplings

 2.Steel : Bar AISI 5140 or AISI 4140

 3. Standard: API 11B   & SY/T 5029/2008

 4. Size : 5/8" to 1-1/8"

 5. Advantade: Anti-corrosion

 6. Sort : Class T and SM , UHS

 7. MOQ: 500 PCS

 8. DELIVERY: 1000 pcs within 20  DAYS

 9. Packing:  wooden case,500pcs per box or 1000pcs

 10. Payment: T/T,

      We can guarantee the quality ,  provide  the best service .