... thick paper.UsesUsed for the equipment in water, steam, etc.and used as sealing material in the joints of pipeline.Working pressure ... ,5.0,6.0mmColorBlack, gray, purple, green, blue, redPACKING&CBMPacking in wooden pallet of about 1000 kgs1000 KGS/CTN,1600×1100 ... relaxation%,≤50Resistance to mediaWater, seawater, steam, diluted acid & alkali, gases o ring EPDM gasket for machine