A J H is a provider of products and services such as sherardising (zinc cementation) plant,passivating plant, metal surface treatment,aluminium anodic dyeing plant,phosphating plant, hot, batch, for metals,phosphating plant, cold, batch, for metals,phosphating plant, immersion, continuous, for metals,phosphating plant, spray, continuous, for metals,cleaning and phosphating plant, combined, for metals,peeling machines, metal bar finishing,descaling plant, chemical, for metals,electrochemical etching equipment,microfinishing machines, metalworking.