中文无码av人妻一级字幕,成人影视日本中文字幕视频,被公侵犯漂亮人妻,色噜噜精品一区二区三区

            Kefengyuan Home > News > Industry news >

            Products

            Industry news

            The inner ribbed pipe production line takes you to know the

            Release time:2018-10-22 13:37

            The inner ribbed pipe production line takes you to know the basic knowledge of the ribbed pipe.
            Pipe material introduction
            Inner rib reinforced polyethylene spiral corrugated pipe is the latest developed fully plastic inner rib reinforced wound pipe on the market. The pipe is made of high density polyethylene (HDPE), which has a large outer surface area, forming a pipe soil with compressive strength. The welding effect is good and the tensile strength of the reinforcement is enhanced. The inner rib structure is beneficial to improve the stability of the ring stiffness.
            Pipe material characteristics
            The pipe winding corrugated structure is reasonable, which is conducive to expanding the contact surface with the soil and the backfill soil filled in the pipe Valley and the pipeline itself bear the pressure of the surrounding soil together, so that the pipe soil acts together.
            The vertical ribs in the middle of the pipe corrugation greatly improve the stability of the wave crest, which is good for compression resistance and impact resistance.
            Then let's take a look at the appearance of the inner ribs.

            內肋管生產線

            One, color
            The color of pipes should be uniform.
            Two. Appearance
            1, no obvious bubbles, dents, impurities and irregular corrugation are allowed in the inner and outer walls of pipes. The ends of pipes should be straight and perpendicular to the axis. The inner rib should be tightly welded and the phenomenon of disengagement should not occur.
            2, the pipe should be broken after cutting, no burrs.
            Three, size and specification
            1, inner diameter
            The nominal size of pipe is nominal (DN/ID).
            2, length
            The effective length of pipe L is generally 6M and 9M. The other length is determined by the supplier and the buyer, and no negative deviation is allowed.
            3. Size
            The minimum average inner diameter, minimum wall thickness and minimum structural height of the pipe shall conform to the requirements of the table below. The average outer diameter of the pipe shall be determined by the manufacturer.
            Qingdao Kefengyuan Plastic Machinery Co., Ltd. is located in the beautiful and rich coastal city called "Eastern Switzerland" - Qingdao, covering an area of 12,000 square meters, beautiful environment, superior geographical location, convenient transportation. Over the past ten years, the company has steadily strengthened its scientific and technological innovations, focusing on the management of foreign markets, is a high-tech enterprise involved in polymer materials, plastic machinery research and development, design and manufacture, production and operation and technical services as one.
            The company relies on high-tech, rely on high-quality products, perfect service to create good economic and social benefits.
            The company has developed more than 20 new products, such as environmentally friendly PP super-thick plate production line, PVC wood-plastic plate production line, PE large-caliber gas/water supply pipe production line, PE large-caliber hollow wall winding pipe production line, PP-R pipe unit, plastic buckle board unit, etc., which are well sold in China, and exported to Russia, Southeast Asia, Middle East, Africa and many other countries and countries. Area.

            Tel

            Top