1·The surface is yakeli get together fat of third acerbity armour the reverse side uses colophony gesso to add fibre glass in order to enhance its hardness.
亚克力表面为聚丙酸甲脂，背面采用树脂石膏加玻璃纤维，以增强其硬度。
2·Processing category: Various dry and wet materials that could be crushed, including chemical raw materials, gesso powders, hulls, grains, and plastics.
加工类别：各种可以粉碎的干湿料物，三聚氰胺，聚乙烯醇，化工原料、石膏粉、皮类、粮食类、塑料类。
3·Processing category:Various dry and wet materials that could be crushed, including chemical raw materials, gesso.
加工类别：各种可以粉碎的干湿料物，化工原料、石膏粉、皮类、粮食类、塑料类。
4·However, no less than is all the product is same, the quality of gesso adornment material also is the good and bad are intermingled.
然而，正如所有产品一样，石膏装饰材料的质量也是良莠不齐的。
5·Processing category:Various dry and wet materials that could be crushed, including chemical raw materials, gesso powders, hulls, grains, and plastics.
加工类别：各种可以粉碎的干湿料物，化工原料、石膏粉、皮类、粮食类、塑料类。
1·In medieval and Renaissance times, gesso (plaster of Paris mixed with glue) was applied to wood panels, plaster, stone, or canvas to provide the ground for tempera and oil painting.
在中世纪和文艺复兴时期，石膏粉(熟石膏和动物胶的混合物)被涂抹于木版、胶布、石头或帆布上，用做蛋彩画和油画的背景。