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Tubing Coupling
HS Code : 7307.99.00
Standard : API-5L,API-5CT
Usage : Joining Tubing
Packing : Wooden Pallet
Richsen Product
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Casing Coupling
HS Code : 7307.99.00
Standard : API-5CT,API-5B
Usage : Joining Casing
Packing : Wooden Pallet
Richsen Product
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Premium Thread Couplings
HS Code : 7307.99.00
Standard : API-5B,API-5CT
Usage : Joining Casing/Tubing
Packing : Wooden Pallet
Richsen Product
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Coupling Blank
HS Code : 7307.99.00
Standard : API-5CT,API-5B
Usage : Thread couplings
Packing : Wooden Pallet
Richsen Product
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API Casing
HS Code : 7306.29.00
Standard : API-5CT
Usage : Major structural component oil well
Packing : Steel Belt
Richsen Product
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API Tubing
HS Code : 7306.29.00
Standard : API-5CT
Usage : Oil extraction
Packing : Steel Belt
Richsen Product