API 5B Coupling GRADE: J55, K55, N80-1, N80-Q, L80, C90, P110,Q125; SIZE: Tubing co...

Couplings By cooperating with Chinese domestic leading manufacturers, we're able t...

X-OVER N80 EU 4-1/2"*3-1/2"EU Threaded Couppings Standard Reference: API spec 5CT S...

X-OVER N80 EU 4-1/2"*3-1/2"EU Threaded Couppings Standard Reference: API spec 5CT S...

Ductile iron grooved pipe fittings Ductile iron grooved couplings FM and UL appro...

Ductile iron grooved pipe fittings Ductile iron grooved couplings FM and UL appro...

tubing coupling size:1.05'',1.315'',1.66'',1.9'',2-3/8'',2.7/8'',3-1/2'',4'',4-1/2''。...

The J55 API-5CT casing pipe is a comparatively low steel grade in oil drilling. It is...

Universal shaft Please visit http://www.sinosteelengineering.com for details

Rapid coupling CV coupling CHA coupling and clamp for DIN EN877 PIPE AND FITTIN...

what is coupling the coupling of fox pipe steel pipe couplings Product Name what is ...

Standard API 5CT &API 5B Grade J55，K55,N80,L80,C90,T95,P110; Place of Origin Tia...