... , 12mm, 12.5mm in thickness We have full gypsum board system,such as: standard , fire---proof,water resistant gypsum board and ... as:A:channles, including the T-Bar, the partition system and the ceiling systemB:joint tape, joint compound,C:screws.Also we ... are mianly use for the ceiling system, partition system and the dry wall system.We have full gypsum board system, such as: standard , fire---proof ...