HOT!! API SH Sub couplings
Product Description
Lasting by quality Developing by credit
We can produce high strength and anti-corrosion sucker rod couplings with Class T ,Class SM ,and UHS with different properties consisting of high strength and toughness,anti-corrosion and surface spray ,used in major oilfield homa and abroad.The capacity of couplings is 10000 per month,making good returns through high added value.
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