镀锌空气管头
铸钢自闭式放泄阀
中心对夹气动蝶阀
日标截止止回阀
LIANXIREN：FANXIANSHENG
SHOU JI：13905261165/13905261159
GONG SI：JIANGSUKAITONGCHUANYONGFAMENYOUXIANYABOMAIQIU
DI ZHI：JIANGSUSHENGJINGJIANGSHICHENGBEIYUANQUXINJIANBEILU35HAO
