kitz止回阀|kitz青铜止回阀|kitz铸铁止回阀|进口青铜止回阀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,10fwkitz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);
kitz止回阀|kitz青铜止回阀|kitz铸铁止回阀|进口青铜止回阀
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);