SBK支撑座,SBK25DFD,SBK30DF,SBK35DF,SBK20DFD,嵩阳支撑座 BK系列(方形固定側) 型號：BK10/BK10-P BK12/BK12-P BK15/BK15-P BK17/BK17-P BK20/BK20-P BK25/BK25-P BK30/BP30-P BK35/BK35-P BK40/BK40-P 型號：BF-10 BF-12 BF-15 BF
