... :Iron/mallable 2,Payment have T/T,L/C,D/P 3,ISO,IEC,CE,GB,BS standard 4,Tracking service 5 ... connection holesBS thread,easy to install.Channel Inspection Tee:SMCIT20MMSMCIT25MM(3/4'')SMCIT32MM (1'')flame-retardant and corrosion-resistant. Malleable Iron ...