国产一区二区三区免费观看网站上,红桃视频一区二区三区在线视频,国产天堂AV在线色,91亚洲欧美成人精品

Our company is a high-tech company specializing in the design, manufacture and operation of power transmission infrastructure. At present, Baoye brand coupling is the main product. With the development of the company, our company is also engaged in the research and production of oil block, hydraulic pipe joint and cylinder. Over the years, the company has always attached great importance to product quality, carefully manufactured and innovative research, so Baoye brand coupling, oil block, hydraulic pipe fittings, cylinders are well received by users. Our couplings are manufactured according to industry standards, and have the ability to develop and design non-standard couplings. All kinds of products can meet the needs of various mechanical products and imported equipment. We are willing to use first-class technology, first-class quality and first-class service to provide users with satisfactory products.