1.Cast iron butterfly valve castings are usually made of ductile iron, with high strength and good toughness. 2.Good abrasion and corrosion resistance ensures a stable seal in long-term use.

1.Equipped with advanced quality testing equipment, each casting is strictly tested to ensure that the quality of products meets customer requirements. 2.We are committed to providing high quality castings and unconditional returns if there is any quality problem.

1.We adopt advanced casting technology, capable of producing high-precision, complex-shaped castings to meet customers' strict requirements on product quality. 2.Equipped with advanced quality testing equipment, each casting is strictly tested to ensure that the quality of products meets customer requirements.

1.Equipped with advanced quality testing equipment, each casting is strictly tested to ensure that the quality of products meets customer requirements. 2.We are committed to providing high quality castings and unconditional returns if there is any quality problem.

1.As a pioneer in the foundry industry, we have led the industry for 26 years. 2.We adopt advanced casting technology, capable of producing high-precision, complex-shaped castings to meet customers' strict requirements on product quality.

1. According to different working conditions and media, investment casting stainless steel butterfly valve plates such as ductile iron, carbon steel, stainless steel, duplex steel, and bronze can be provided. 2. Investment casting stainless steel butterfly valve plate is suitable for hvac, fire protection, water conservancy projects, urban water supply and drainage, electricity, petroleum, chemical industry and other industries, and can be used for gas, liquid, semi-fluid, solid, powder and other media. 3. The nominal pressure range of investment casting stainless steel butterfly valve plate is 0.1MPa~2.0MPa, which can meet various industrial pressure requirements.

1. We can use various materials such as ductile iron, gray cast iron, aluminum alloy steel, carbon steel, etc. To manufacture durable steel valve body according to different needs of users. 2. Durable steel valve body uses a combination of sand casting and CNC processing technology to further improve the accuracy and surface smoothness. 3. Durable steel valve body has low resistance when fluid passes through and operates efficiently.

1. Our iron casting valve body is made of ductile iron, which can improve the stability of the equipment. 2. The inspection process of iron casting valve body is strict, which can ensure the quality of the product. 3. We have a professional technical and service team for iron casting valve body, so you can enjoy worry-free after-sales!

1. Cast iron butterfly valve body is made of gray iron or ductile iron, which is not only low-cost, but also wear-resistant and corrosion-resistant. 2. The design of cast iron butterfly valve body is very precise and can meet the diverse needs of users. 3. The surface treatment of cast iron butterfly valve body after machining can effectively improve the corrosion resistance and other properties of the product.

1. Ductile iron casting pump parts, whether in raw material selection, casting process, or final CNC processing, we strictly follow international quality standards. 2. We at Hengrui have more than 20 years of experience in designing, producing and machining parts for Ductile iron casting pump parts. 3. Our annual output can reach 10,000 tons, 70% of which are exported to Germany, Austria, the United States and Japan.