Pipelayers Caterpillar Pipelayers Caterpillar 572G Pipelayer Caterpillar 572R Pipelayer Caterpillar 583R Pipelayer Caterpillar 583T Pipelayer Caterpillar 587T Pipelayer Caterpillar 594 Pipelayer Caterpillar 72H Pipelayer Caterpillar PL61 Pipelayer Dressta Pipelayers Dressta SB30 Pipelayer Dressta SB60 Pipelayer Dressta SB85 Pipelayer