SDT Global Footprint<br />Wherever industrial valves are needed in the world, <br />SDT is nearby.<br />Seong Duck Techwin Co., Ltd.(sdt) is a the largest Ball Valve maker in Korea and maintain strong partnerships with authorized stocking distributors on every continent. For your nearest authorized stocking distributor or representative, full contact details can be obtained from our web site.<br />First established in 2000, Seong Duck Techwin is a leading industrial which is specialized in Forged and Casting Ball valves.<br />Our facilities incorporate all aspects of valve design, development and manufacture ensuring that SDT can offer a degree of flexibility rarely encountered elsewhere.<br />At SDT, we stand for three values <br />quality, innovation and service. <br /><br />We know the worlds Oil, Chemical, Petrochemical and<br />Process industries require precision flow control products. We have dedicated ourselves to supplying that need with an extensive range of industrial valves, manufactured in our own factories and designed for environmental sensitivity.<br /><br />Seong Duck Techwin Co., Ltd.(sdt) is a proud member of American Petroleum Industry(API 6D) and our management system as ISO 9001. Our valves are available in all pressure ranges from ANSI 150psi to ANSI 2500psi and DN and JIS equivalent also<br />and in size 1/2 inch to 48 inch at our highest priority. We also source and distribute tailored Valve parts such as Body, Disc, Stem