Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd was established in 2000. Professionally manufactured sucker rod pumps, sucker rods , polished rods,sucker rod couplings, pump barrel, pump plunger and hollow sucker rod etc for almost 20years. Products have been exported to North America, Europe, South Asia, and Middle East etc. All products manufactured as per API&ISO standard.

API 11B
API 11AX
ISO9001
ISO14001