进口铜球阀,kitz铜球阀
kitz青铜法兰全通径球阀,TB,kitz青铜丝扣缩径球阀,TL/TLT,
kitz黄铜丝扣缩径球阀,T/TT,TK/TKT/TKW,
kitz黄铜丝扣全通径球阀,SZA,kitz三通式黄铜丝扣缩径球阀,TN,