... dealing with forging parts,can be supply different type of coupler,like British type,Amercia type,Italy type and so on ... ,sleeve coupler,putlog and so on,the finishing can be hot dip galvnized and electric galvanized,all of products upto BS1139 and EN74 ... standard.We also welcome OEM order,If there are any need pls feel free to contact usSelina scaffolding coupler