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Sand Casting Manhole Coverseries We are an ISO 9001:2008 certified enterprise. We can cast and process any type of iron casting products according to the drawing and samples provided by the customers with excellent quality. Products Parameter Manhole Cover and FrameClass B125Class C250Class D400Long ext. Frame Diam(mm)Clear opening Diam(mm)Height(mm)N.W.(kg)Long ext. Frame Diam(mm)Clear opening Diam(mm)Height(mm)N.W.(kg)Long ext. Frame Diam(mm)Clear opening Diam(mm)Height(mm)N.W.(kg)300200307400300351550040075324003003010500400402360050075485004003517550450453070060075706005003529600500453480070080957006004042700600505390080090113800700455580070060661000900100154 Other Detailed Description 1. Product information Surface is smooth of our products and free from sand holes, blow holes, distortion or any other defects. 2. Material Ductile Iron GGG500 / Grey Iron GG20. 3. Designs As per customers' drawings or samples. 4. Process Green sand with hand molding. 5. Coating Black Bitumen Coated, Without coating or Coating as per customers' requirement. Manhole Covers are manufactured for municipal or drainage system and industrial facilities of valve well. Our products have been largely exported to many counties and regions in Europe; South America; Middle East and South-East Asia. Their good quality has got a favorable appraisal from the end-users. Please contact me at your earliest convenience if you are interested in our products. We are looking forward to cooperating with you by all of our heat! Contact: Mr. Chenfeng Dong Botou Chenfeng Casting Co., Ltd Tel: +86-317-8333676 Fax: +86-317-8335116