pipes - seamless (cs/ltcs) for pdh pp plant with ethane and propane handling facilities project of petronet lng limited, dahej (gujarat) pipes - seamless (cs/ltcs) for pdh pp plant with ethane and propane handling facilities project of petronet lng limited, dahej (gujarat) , block no. : b001, item sr nos : 1-6 , block no. : b002, item sr nos : 7-18 , block no. : b003, item sr nos : 19-20 , block no. : b004, item sr nos : 21-43 , block no. : b005, item sr nos : 44-54 , block no. : b006, item sr nos : 55-61 , block no. : b007, item sr nos : 62-63 , block no. : b008, item sr nos: 64-66 , block no. : b009, item sr nos: 67-71 , block no. : b010, item sr nos: 72-75 , block no. : b011, item sr nos: 76-77