... we can do OEM basing on your custom size, printing color, materials, die cutting pattern, surface treatment, packing etc. will all ... 300gsm duplex cardboard + 650gsm grey board +300gsm duplex cardboard with grey backPrinting:4 color processes Surface Treatment:inside: glossy ... manager.About Packing:Usually each pack into a polybag, with printed header, then put into corrugated carton.Carton weight ...