上海精銳閥門 進口閥門 上海精銳進口止回閥 旋啟式止回閥 升降式止回閥 立式止回閥 上海精銳止回閥系列：止回閥，進口止回閥,對夾式止回閥H71F-16，法蘭止回閥H44H-16，日標止回閥(10K)，德標止回閥H44H-16，美標止回閥H44H-150Lb，日標不銹鋼止回閥，德標不銹鋼止回閥，美標不銹鋼止回閥H44H-150LB，高溫止回閥H42W-16I，高壓止回閥H61W-160，靜音止回閥HC42T/X/H(DRVZ)，橡膠瓣止回閥HH44X(SFCV)，球形止回閥HQ41X,HQ44X,HQ45X，消聲止回閥HC41X-16，對夾式雙瓣止回閥H76X/H,H71H,H72H微阻緩閉蝶形止回閥ZHYH46H/W,HH48H/X,HH49H/X，微阻緩閉式止回閥HH44X/H/T-16，對夾圓片式止回閥H74X/H-16，旋啟式止回閥H44H-16，升降式止回閥H41H-16，節能消聲止回閥H41X-16，V型高壓單向閥，S型高壓單向閥。歡迎您來電訂購