The number and material of puttying are varied upon base course of the wall, typically puttying in 3 times.
根据墙体基层的不同，刮腻子的遍数和材料也不同。一般情况为三遍。
2
Application of polyurethane enamel on farmer trucks with key points in the processes of phosphating, priming, atomic ash puttying and enamel spraying is described.