PIA - PARTIAL PLATE FR Partial plate made of Fe/Zn, used for joining narrow plates. It can be supplied in AISI 304L or AISI 316L upon request. Codes: PIA1800 – Narrow mounting plate, measures B140xH1800 PIA2000 – Narrow mounting plate, measures B140xH2000 PIAFR – Joining kit for wider mounting plates PDF – CATALOG.