通常与真空泵,测试联接管连接,抽真空,灌注方便快捷
规格:ZG1/8"-28ZG1/4"-19ZG-3/8"-19ZG1/2"-14ZG3/4"-14ZG1"-14ZG5/4"-12
规格:ZG1-1/2"ZG2"ZG2-1/2"
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