Made in accordance with the applicable rules and lows no. 46 of 5th March 1990 and no. 10 of 9th January 1991, it is an ESENCOR CU DHP copper alloy pipe complying with European Standard EN 1057 -annealed in coils and phosphorous-deoxidised, with minimum 99,9% copper content and 0,015 - 0,040% phosphorous, in compliance with UNf 5649/71 series B, heavy, bearing the marking "ESENCOR D x thickness EM 1057 CU DHP 99,9% SLM I 00".

Covered with a low- density closed-cell polyethylene foam sheath of a thickness according to low no. 10/91, finished with an outer extruded film of green LDPE that is embossed to enhance mechanical protection and appearance. Non-toxic, odourless and free from chlorofluorocarbons (CFC).