[ 8寸管道:BPT12-13C-1 ]
[ 10寸管道:BPT12-14C-1 ]
[ 12寸管道:BPT15-23C-1 ]
[ 12寸管道:BPT15-24C大风量 ]
[ 12寸管道:BPT15-34C大风量 ]
[ 12寸管道:BPT15-23C[经典款] ]
[ 10寸管道:BPT12-14C[经典款] ]
[ 8寸管道:BPT12-13C[经典款] ]