查询词典 switch cast

First use of cast iron switch frame at Hazelton, Pennsylvania.

宾夕法尼亚州Hazelton首次使用铸铁开关架。

Of raw materials to make ALE Series Stroke Stop and Stroke Switch use of carbon steel, ordinary gray cast iron or ductile iron back to BURDEN; reduce the liquid iron in the alloy elements such as Cr, Mn and other content, reducing its molten iron-containing gas; before the next core sand core all the overhead brush paint and the storage period to prevent the sand core to absorb moisture; in rainy days or high humidity of the season, the next best to use torch to the former core cavity, the surface of sand core baking again, in order to reduce sand-fat content; high-temperature casting a small valve in order to facilitate their own exhaust and the reduction of molten iron casting slag produced.

6原料尽量使用碳钢、普通灰铸铁或球墨铸铁回炉料；降低铁液中的合金元素如Cr、Mn等含量，减少铁液自身含气量；将下芯前的砂芯全部架空刷涂料且限期存放，以防砂芯吸潮；在阴雨天或湿度较大的季节，下芯前最好用喷灯将型腔、砂芯表面烘烤一遍，以减少砂型发气量；采用高温浇注小阀门，以利于铁液自身排气和减少铸渣产生。

Specializing in the production of plaque: hard and soft plastic resin, plastic flow only, AB glue adhesive, all kinds of aluminum high-light sign, crystal Epoxy signs, metal signs and corrosion, electroforming plate, PC, PVC plate, chassis panels, membrane switch, soft and hard Crystal Epoxy, metal paste character cast aluminum signs, laser anti-counterfeit stickers affixed, metal corrosion and a variety of processing incoming screen.

深圳市鑫鸿华五金铭牌制品有限公司专业生产：环氧树脂软硬胶，止流胶，AB胶接着剂，各种铝质高光标牌，水晶滴胶标牌，五金及腐蚀标牌，电铸标牌，PC、PVC标牌，机壳面板，薄膜开关，软硬水晶滴胶，金属贴字，铸铝标牌，激光防伪不干胶贴，金属腐蚀以及各种来料丝印加工。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。