成人做爰69片_激动网色视频_三级黄色在线视频_野花免费社区在线_欧美日韩一区二区三区免费_国产仑乱_c0930h0930在线播放_国产成人亚洲精品乱码在线观看_大肉大捧一进一出好爽视频_日韩精品在线播放_久久爱伊人_黄色免费小视频网站_妇女高潮一区二区三区_中国黄色网页_国产精品二区三区在线观看_在教室轮流澡到高潮h_久久久久久五月天_久久久高清一区二区三区_99草在线观看_国产网站入口_亚洲中文字幕aⅴ无码天堂_日本一本二本三区免费_中国内射XXXX6981少妇_在线免费观看精品_久久精品国产一区二区三区四区_光棍天堂影视社区_a人片中文字幕一区二区_国产三级无毒无害视频_free性xxxxuyghur_东京热一本道高清免费

tangshan tiankun metal tool manufacturing co., ltd. is located in luannan county, tangshan city, hebei province, china, on the beautiful coast of the bohai sea. the two ports of tangshan, caofeidian and jingtang port, are the important ports in northern china. tangshan is adjacent to the two major cities of beijing and tianjin, 192 kilometers away from beijing and 70 kilometers away from tianjin binhai new area. it is located in the one hour economic circle of beijing tianjin hebei, and is the first choice for convenient transportation 。 luannan, hebei province is the production base of steel spades in china. its products are exported to europe, america and other dozens of countries. tangshan tiankun mainly produces steel spades, aluminum spades, steel forks, steel pickaxes and hardware garden tools, more than 500 varieties, registered brands buffalo and benpai, with an annual output of more than 9 million pieces and an output value of more than 10 million us dollars. company address: along the trunk road, songdaokou town, luannan county, tangshan city.