SF Tech has been producing OCTG couplings for half a century and its couplings clear stringent inspection standards set by majors.

As recent oil and natural gas wells, both inland and off-shore, have been as deep as 8,000 meter, OCTG couplings are requested to have high strength, high corrosion resistance and high gas-tightness.

Therefore, it is indispensable to apply special high-precision threading technology and fully automatic surface treatment technology to special alloy seamless pipe for manufacturing quality OCTG couplings.

SF Tech’s OCTG couplings are delivered to Sumitomo Metal Industries, Ltd.(SMI), the world largest OCTG producer, to couple SMI’s OCTG pipe, and highly reputed worldwide. SF Tech is API certified in 1970 and ISO9001 certified first in the OCTG

coupling industry in 1995.

Features of SF Tech’s coupling

• Manufacturing technology to cover wide range of OCTG couplings from 2-3/8” to 20”
• Advanced technology applicable to API threads and other special threads
• High reputation worldwide (supplied to majors like Shell, Exxon Mobil, BP, etc.)
• Available in carbon steel, stainless steel, hastelloy, etc.
• Accumulated production reaches 73 million pieces.

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