Correct

烙铁

/ làotie / 
Strokes

Definition

flatiron/iron/branding iron/soldering iron

Example

As a Noun

iron; flatiron

1
Shíxīn
实心
làotie
烙铁

sadiron

2
Zhēngqì
蒸汽
làotie
烙铁

steam iron

3
Diànlàotie
电烙铁

electric iron

As a Noun

soldering/solder/searing iron