1 ) interphase house with door assy pvn12b ) rate contract for supply of 1 ) interphase house with door assy pvn12b ) 2 ) assy. of interphase mech. ( pvn36 ) . , interphase houses , interphase house with door assy ( pvn12b ) to drg.no. 15217001571- var. 00, rev. 03 on fully finished basis. paint shade : darkadmiralty grey ( 632 ) or light admiralty grey ( 697 ) of is5 as per sg15201 part f. minumum thickness of powder coating shall be 70 microns. pvc factor of steel is 1:47. base rate of 1mm thick cr coil of steel, issued by jpc ( average rate of four cities delhi, kolkata, mumbai & chennai has been considered ) is rs 88.28 / kg. , assy. of interphase mech. ( pvn36 ) to drg no 15213030591-v03 rev.11 on fully finished basis. paint shade : dark admiralty grey ( 632 ) or light admiralty grey ( 697 ) of is5 as per sg15201 part f. minumum thickness of powder coating shall be 70 microns. pvc factor of steel is 1:94.25. base rate of 1mm thick cr coil of steel, issued by jpc ( average rate of four cities delhi, kolkata, mumbai & chennai has been considered ) is rs 88.28 / kg.