不銹鋼閘閥 銅製閘閥 鐵制閘閥 鋼制閘閥 10FCLU 10FCLN 5FCM 5FCMN 10FCLUS 7.5FCLUS 125FCWI E-7.5FCLUSK E-10FCLUS G-7.5FCLUS G-10FCLUS 10SCLS 20SCLS 150SCLS 300SCLS 600SCLS S FR FH EB 1 2 3 4 5 6