... #,20#,45#,stainless steel material,mainly used for mini plough hexagonal pipe 1.material: carbon steel(10#,20#,45#),stainless steel(201 ... .,)2.size:32mm*23mm,41mm*33mm,etc., and some 20# hexagonal bars being inserted into them as axis arbors,we have ... mainly used for mini plough3.shape:outside and inside both hexagonal,outside hex but inside round,or outside round inside hexagon4 ...