DCV41 BSP斯派莎克（spiraxsarco）DCV41 BSP止回阀

DCV4斯派莎克（spiraxsarco）DCV4止回阀

DCV3止回阀斯派莎克（spiraxsarco）DCV3止回阀

DCV1斯派莎克（spiraxsarco）DCV1止回阀

DCV1,DCV2,DCV3斯派莎克DCV1,DCV2,DCV3止回阀

齐全观视镜止回阀组。斯派莎克止回阀，进口止回阀