Joint
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Product Description
The company developed the serial of joint in 1984.The products have been the world level after studying and manufacturing about 20 years.The products can mest the requirement of domestic consumers,also have been exported to all around the world.It got the certificate of API in 1994,the certificate of ISO9001 in 1996.And it passed the auditing of the OTC(Oilwdll Tubular Consulta) in 2000.We carry on standard of Grant JSG-107 now.