Q341F/Q341N/Q341PPL/Q341Y/Q341H/Q341W/Q347PEEK/Q341PEEK-150LB、Q341PEEK-300LB、Q341PEEK-400LB、Q341PEEK-600LB、Q341PEEK-800LB、Q341PEEK-900LB、Q341PEEK-1500LB、Q341PEEK-2000LB、Q341PEEK-2500LB、Q341PEEK-3000LB、Q341PEEK-3200LBC/I/V/P/R/RL美标法兰式手动球阀、蜗轮蜗杆传动美标浮动式