Welcome to KINGVIA industrial, a major joint stock company manufacturing wide range of butt welding pipe fittings and flanges, according international standards including ASME, DIN, JIS, etc, with materials from plain carbon steels high-alloy stainless ...

Shijiangzhuang topway trading company is one of the leading exporters in China which specializes producing and exporting all kinds steel iron products. Such as seamless weld pipes, butt welding threading pipe fittings, grooved fittings , flanges, valves, ...