IBC lid wrench NW150 - St37 / electrolytically galvanized - for IBC lids

IBC lid wrench in St37 / electrolytically galvanized for Schütz lids NW150 (or equivalent) 

The lid wrench is made of St37 / electrolytically galvanized.

Can be used as an IBC lid opener NW150 (formerly DN150) or IBC lid closer.

Material: ST37 is an unalloyed structural steel S235JR,
currently known by material number 1.0037.
This was subsequently electrolytically galvanized.