Rectangular tube

RR.

Reducer concentric EN 10253-4

RK.

Reducer concentric, made from sheet

RKBL

Reducer concentric, seamless

NK.

Reducer eccentric, made from sheet

REBL

Reducer eccentric, seamless

NE.

Reducer eccentric, welded

RE.

Reducing elbow 90° F/F

RW.

Reducing hexagon nipple

RN.

Reducing socket

RM.

Reducing socket nipple

MN.

Reducing tee

TS.r