... 2.energy-saving 3.Amenity,safety 4.maintenance free Sea Wave Glass Block Glass block details: 1. Specification: 190* ... , crystal parallel, lattice, rhombus, double star, frost bistar, sea wave, water bubble, diamond, oblique line, cycle rhombus, well shape, ... sand, soda ash, calcium. Fusion is obtained at approximately 1550OC. Light Transmission Clear 190x190x80 = 80% Coloured 190x190x80 = 60% Thermal ...