Seamless Pipe Elbows
Seamless Pipe Elbows is fitting which uses at corner of pipeline. It has 80% occupation rate of all kinds of pipeline fittings.

Steel Pipe Elbows has hot forming type,press type and also cold forming type. It is widely producing by hot forming machine. Steel Pipe Elbows with thinner thickness normally produced by cold forming type.

Steel Pipe Elbows has long radius type and short radius type. Long radius type 's curvature radius equal to 1.5 double of NPS pipe,so named as R=1.5D. Short radius type's curvature radius equal to 1 double of NPS pipe,so named as R=1D. D is Steel Pipe Elbows 's elbow diameter,R is curvature  radius.
It is same with American standards.