Glass block 1. Specification: 190*190*80mm 2. Certificate: ISO9001,ISO14001 3. Market: Asia,Middle East,South America, Africa 1. Product name: glass block2 ... . Patterns: cloudy, parallel, wave, lattice, diamond, double stars, bubbles etc.8.Packing detail: pallet packing or loose packing. One 20'ft ... us inquiry and visit our factory in your free time. glass block