GUANGTAI PRECISION MAUFACTURING FACTORY is a professional manufacturer and exporter of all kinds of iron casting products. The material of our product are gray iron and ductile iron, that is HT150.200.250. QT450-10.500-5. Etc. At present, we carry on orders according to custmers' drawings or samples. Our main products are as follows: 1)Cast Iron Manhole cover and frame 2) Cast Iron Tree grate/grill/surround 3) Table Bases-Cast Iron 4)Iron-Cast-Pig-Slat-Floor/ Pig-Hog Housing, Pig Equipment 5) Trench grate/gully, Floor Drainage, Catch Basin 6) Gate Valves for Castings 7) Fire hydrant/underground hydrant and so on. If any of the items listed meets your interest pls let us have your specific enquiry, and our quotation will be forwarded without delay.