装订机; binder; SteelVip; SteelClassic; Thermal Binding; SteelMat; SteelCrystal; SteelBack; Steelbinder; 热熔装订机; 钢脊装订机; 热熔封套; VIP钢脊封套; 水晶钢脊封套; 磨砂钢脊封套; 拜克钢脊封套;