ACCESSORIES FOR RIPPLE TANK Model Crystal: Comprises of a rectangular matrix of 28 nuts and bolts (7x4) fixed in regular pattern on a rectangular disc, representing 4 rows of layers of a solid crystal Laboratory Equipment Exporters & Instruments Manufacturers, ACCESSORIES FOR RIPPLE TANK Model Crystal: Comprises of a rectangular matrix of 28 nuts and bolts (7x4) fixed in regular pattern on a rectangular disc, representing 4 rows of layers of a solid crystal, ACCESSORIES FOR RIPPLE TANK Model Crystal: Comprises of a rectangular matrix of 28 nuts and bolts (7x4) fixed in regular pattern on a rectangular disc, representing 4 rows of layers of a solid crystal Lab Instruments India