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This door should be calculated according to one, the basic standard toilet door in 1.5 square meters. Folded into square meters should be about 180 yuan. The identification mark is certainly yes, generally at the top of the door (lock position).
Steel and steel door prices to see the size and quality requirements, if there should be identified in the hardware or other stickers or make the spray marked, the material is made of steel profiles and accessories manufacturers, Eurasian is also played a role in assembly