Mariani Was Created And Developed With The Specific Determination To Meet The Many Demands Of The Market, With A Wide Range Of High Quality Valves And Fittings. The Organization Of Qc, Ensuring Strict Observance Of Procedures For Design, Construction And Testing According To Iso 9000 Regulations, It Also Allows The Construction Of Valves Are To Undergo The Most Severe Operating Conditions (Chemical Industries, Offshore Platforms, Thermal Or Nuclear) Power Plants In Compliance With International Standards: Api – Asme – Astm – Bsi – Din – Mss.