·YSC8-02,YSC8-03,YSC8-04,STNC直
·YSC10-01,YSC10-02,YSC10-03,STN
·YSC10-04,YSC12-02,YSC12-03,YSC
·YPY4,YPY6,YPY8,STNC变径三通管接
·YPY10,YPY12,YPY16,STNC变径三通
·YPYW6-4,YPYW8-6,YPYW10-8,YPYW1
·YPE4,YPE6,YPE8,STNC三通管接头
·YPE10,YPE12,YPE16,STNC三通管接
·YPEW6-4,YPEW8-6,YPEW10-8,YPEW1