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Coupling ,sub-coupling ,polished rod coupling are designed in accordance with API SPEC 11B and made of fine carbon-steel or alloy steel(equivalent to AISI 1526 or AISI 4135).
Normally, they have two wrenches one the outside diameter but they also can be providing in no wrench when required by user.TECHNICAL PARAMETERS
FULL SIZE COUPLING
SIZE
(in)COUPLING O.D
(mm)
(+0.13,-0.25)LENGTH
(mm)
(+1.57,0.00)THREAD D
(mm)LENGTH OF
WRENCH SQUARE
(mm)HARDNESS
(HRA)5/8 38.1 101.6 15/16 31.8 56-62 3/4 41.3 1-1/16 7/8 46.0 1-3/16 1 55.6 1-3/8 38.1 1-1/8 60.3 114.3 1-9/16
| Registration Date | 2013/10/11(Year/Month/Date) |
|---|---|
| Buyer / Seller in EC21 | Seller |
| Business Type | Manufacturer |
| Year established | 2000 |
| Employees total | 101 - 500 |
| Annual revenue | More than 100,000,000 |
| Company | Sino Petroleum Equipment Co.,Ltd |
|---|---|
| Address | Dongying DistrictDongyingShandongChina |
| Phone | 86 - 188 - 66675815 |
| Homepage | http://www.sinopecl.com |
| Contact | Joseph Hsu |