SP Hi-tech Co., Ltd. is specialized in overlay welding and manufacturing customized metal products with overlay such as, Heat Exchangers, Pressure Vessels, Fittings, Column Pipes, Tube Sheets, Tanks, Flanges and various metal structures etc.

We are very experienced in welding overlay by using GTAW, FCAW, SMAW, ESW, SAW, PTA, etc and we are developing the technology and expanding the facilities continuously.
Thus we have exclusive technology and equipments like super-sized automatic PTA equipment for Co, Ni and W alloy steel overlay, Butterfly valve plasma overlay auto system, Elbow inside overlay auto system, Long pipe inside overlay auto system.

Our main products are Pressure vessels and the parts, Heat exchangers and the parts, Boilers, Flange, Pipes, Valves, Nozzles, Cylinders, Turbine Scroll Case, Drum, Strainer, Shaft, Barrel, Structures and various metal products.

We are supplying the products for the customers in the fields of Ship, Industrial plants, Oil and Gas industry, Chemical Nuclear power plant, etc. Also we have ISO***1/***0, ISO****1/***4, ASME STAMP "U" "S" "U2"  KR certificates. We always do our best for technique, equipments and process.