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经营范围
发明名称
POWDER FLOW CONTROL VALVES
摘要
申请公布号
GB8727425(D0)
申请公布日期
1987.12.23
申请号
GB19870027425
申请日期
1987.11.23
申请人
PORTALS ENG LTD
发明人
分类号
B65G53/66;B65B39/00;B65D90/54;F16K7/07
主分类号
B65G53/66
代理机构
代理人
主权项
地址
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