... specification: 1220x2440mm, 1200x2400mm Cement board for drywall steel partition system:Cement board is totally asbestos free.Standard Specification1. 1220* ... cnebp.comWe are solution of construction: structure frame, stud and track, furring channel, T grid, ceiling grid, metal ceiling, ... board, gypsum board, fiber cement board, steel structure, C channel, U channel. Cement board for drywall partition ...