JS coating The characteristics of a product 1. This product is non-toxic, harmless and pollution-free, green environmental protection. 2. The product ... must be strong, smooth, clean, non-floating ash, no Mingshui. 2. Baseband too uneven surface cracks should be repaired using polymer ... of polymer cement mortar: (waterproof plastic: cement: sand = 1:1:2:6) 3. The application to open a barrel even after ...