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Specialist in Municipal, Drainage & Machinery Products & Services! SYI Group Companies have served the society for over 20 years with best Municipal, Drainage and Machinery products. * SYI Foundry – manufactures Manhole Covers, Gully Gratings, Surface Boxes, and all types of OEM municipal products and outdoor furnitures. * SYI Pipeline Corporation – manufactures a full range of Pipeline products and accessories like Pipes, Fittings, Valves, Universal Couplings, Clamps, Fire Hydrants, and etc. * SYI Industrial Casting Division – manufactures OEM Industrial, Electrical, Agricultural, Automobile parts by Investment/Precision/Lost-Wax Castings, Resin Sand Castings, Lost Foam Castings and more. * SYI Forging Factory – manufactures Flange, Drop Forging, Cold Forging, Free Forging and Die Forging products. * SYI Aluminum Division – manufactures Aluminum Sand Castings, Permanent Mould, Die Castings, Aluminum Extrusions and all types of aluminum products. Since the second half of 20th century, SYI has been an OEM manufacturer of machined & un-machined castings and forgings in a variety of industries. Today, we manufacture over 1,000 products. SYI are continuing to refine our role as a technical expert, quality leader and fast reactor. At Shanxi base, we have over 500,000 square meters of workshop, warehousing and production facilities. We have 4 automatic moulding machine lines, CNC machining center, professional laboratory, in-house pattern & tooling shops and most important-a group of highly experienced and technically qualified staff. SYI regards quality as an essential and integral part of our business success. Until now, we are TUV / BV/ BSI / SGS / UL / FM / NF / CE certified. Manufacturing "SYI" Brand products has evolved as a mark of quality! SYI also has the capacity to assist the customer from initial design, engineering to first sample and production. Our aim is to provide all of our customers with VALUE of the products instead of only low prices!