Company profile Longris Industrial Co., Ltd. is a professional enterprise specialized in the production, sales and export of seamless steel pipes, alloy steel pipes, stianless steel pipes, pipe fittings and ion exchange resins.The company set up a factory in 2012, covering an area of 100,000 square meters.Existing staff 150 people, the company has passed ISO9001 international quality management system certification, to global industrial equipment to provide safe and reliable stainless steel pipe and make unremitting efforts to struggle, the company made a pressure pipe production license (TS), det norske veritas (DNV), British corporation (LR), American bureau of shi...