5-1A型快关阀
船用铸钢快关阀
LIANXIREN：FANXIANSHENG
SHOU JI：/
GONG SI：JIANGSUKAITONGCHUANYONGFAMENYOUXIANGONGSI
DI ZHI：JIANGSUSHENGJINGJIANGSHICHENGBEIYUANQUXINJIANBEILU35HAO
