N80Q/N801 oil casing pipe is a kind of large diameter pipes, included in API SPEC 5CT...

N80 casing for the walls of oil Company Hebei Borun Petroleum Pipe Manufacturing Co....

API 5CT/5Bsteel oil pipe tubing,casing 1.OD:1'-20' 2.carbon seamless steel pipe 3...

Foreign trade department: Dongguan Pulin Metal Co., Ltd. was established in year 2...

API 5CT N80 square hollow section are our main producing steel,We are API 5CT N80 squ...

API 5CT N80 oil pipe is our best selling product, As one of the most popular supplier...

Oilfield Casing Pipes/Carbon Seamless Steel Pipe/Oil Drilling Tubing Pipe Size ...

The steel grades of common oilfield API-5CT casing pipe include J55, K55, N80-1, N80Q...

API 5CT J55/K55/N80/P110 Casing Coupling 4 1/2" to 20" Api Casing Coupling ...

API 5CT J55/K55/N80/P110 Casing Coupling 4 1/2" to 20" Api Casing Coupling ...

Product: top quality 13 Chrome 3 1/2 eue casing /tubing coupling Material: H40.J55...

FROM 1.09 "-20" Standard according to API 5CT Length Random length, o...