procurement of foam pigs - 20 dia - hdpu foam pig 11991-chennai new terminal,20 dia - high density poly urethane foam pig,100pu coated high elastomer with conical front and rope,2 16 dia - hdpu foam pig 11991-chennai new terminal each 4 description => 16 dia - high density poly urethane foam pig,100pu coated high elastomer with conical front and rope