免费人成年激情视频,中文字幕无码人妻,国内精品一级无码视频

丹陽申澳焊接材料有限公司主要致力于有色金屬焊接、防磨堆焊、鑄鐵補焊、鎳合金焊接及釬料共五大系列一百三十多種焊接材料，廣泛地為機電、冶金、航天、儀表、電力、化工、輕工、汽車等各行業服務。公司產品遍及全國各省（市）、自治區。公司在開發國內市場的同時積極開拓國際市場，出口的品種和數量均有大幅度提高。

Danyang Shenao Welding Materials Co., Ltd. is mainly engaged in five series of non-ferrous metal welding, anti-wear surfacing, cast iron repair welding, nickel alloy welding and brazing filler metal. There are more than 130 kinds of welding materials. Services in various industries such as instrumentation, electric power, chemical industry, light industry, and automobile. The company's products are spread all over the country's provinces (cities) and autonomous regions.