进口青铜止回阀,kitz青铜止回阀
kitz青铜丝扣旋启式止回阀,R,kitz青铜丝扣升降式止回阀,RF,F,
kitz铸铁法兰旋启式止回阀,10FCO(S)(U),16FCO,125FCO(S),kitz铸铁对夹式止回阀,10FW
kitz球墨铸铁法兰旋启式止回阀,150SOB,300SOB,kitz球墨铸铁对夹式止回阀,20SW,
kitz不锈钢丝扣升降式止回阀,UN,kitz不锈钢丝扣旋启式止回阀,UO(M),
