... )Surface treatment: AB, AC, SB/B, SS/G, a variety of colors can be plated.(2)raw materials are high ... have to be re-polished.(5) 20 with a few strict quality controltesting, strict control on quality.( ... also be usedas decoration.(9)With a quick escape function. In the case of locking the tongue side, in ... tongue, so as to ensure that in case of emergency escape rapidly from the indoors.(10)Suitable for ...