英文（限300单词以内）：Haiyan Longcheng Standard Parts Co., Ltd is located on Hangjiahu Plain in the beautiful and rich Eastern China. It lies in the middle of Shanghai-Hangzhou Expressway, near Zhapu Port. The geographical position is superior and the transportation is convenient. The predecessor of the company was Haiyan Shuangjian Standard Parts Factory. Now, it is renamed as Haiyan Longcheng Standard Parts Co., Ltd and has more than 10 years history. It specializes in manufacturing and selling all kinds of screw products and owns a proprietary export right.Currently, the company has more than 50 employees and 10 professional and technical R&D staff. The company covers an area of 6 acres and owns all kinds of advanced screw manufacturing machines and equipment. So far the annual export of the company has reached 10,000 tons. Screw products can be produced with Chinese GB standard, German DIN standard, American ANSI standard,and Japanese JIS standard, etc.Longcheng adheres to the principle of “creating Longcheng brand and striving to be a world-famous brand” and always sticks to the corporate image of “taking a master’s posture and building Longcheng staff’s volition”. It carries out an overall quality management, based on a strict standard parts quality management mode. The company relies on ISO9001:2008 quality management system and strictly controls product quality and work quality, ensure product quality and meet customer requirements.

Stainless steel screws, stainless steel bolts, photovoltaic products