Model NO. spray welding The Type of Thread API Thread Certificate API 11b, ISO9001 Usage Sucker Rod Trademark Zhongshi Transport Package Wooden Case or as Requested Specification API Origin Henan, China HS Code 8431
Product Description
Couplings produced by our factory include sucker rod coupling, sub-coupling, API 5CT tubing and casing coupling. Sucker rod coupling and sub-coupling are designed in accordance with API Spec 11B, the material is high quality alloy steel. Normally, there are 2 wrench flats on the outside diameter. Class T coupling hardness is HRA56-62 after heat treatment, possesing better anti-corrosion property and abrasion-proof property.Sucker rod coupling is used for connecting the same size of sucker rods. Sub-coupling is used for connecting the two sizes of sucker rods or polished rod to a sucker rod string.
Basic Info.
Model NO. spray welding The Type of Thread API Thread Certificate API 11b, ISO9001 Usage Sucker Rod Trademark Zhongshi Transport Package Wooden Case or as Requested Specification API Origin Henan, China HS Code 8431
Product Description
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Couplings produced by our factory include sucker rod coupling, sub-coupling, API 5CT tubing and casing coupling. Sucker rod coupling and sub-coupling are designed in accordance with API Spec 11B, the material is high quality alloy steel. Normally, there are 2 wrench flats on the outside diameter. Class T coupling hardness is HRA56-62 after heat treatment, possesing better anti-corrosion property and abrasion-proof property.Sucker rod coupling is used for connecting the same size of sucker rods. Sub-coupling is used for connecting the two sizes of sucker rods or polished rod to a sucker rod string.