The legal person is wang yajun and is represented by wang yaju, and operates in the following general areas: production, marketing: fittings for pipes, pipes, pipes, boards, manholes, pipes, hangers, screwdrivers, straight wires, seamless steel pipes, thermostats, polyurethane thermostats, steel stevellers, composting steel pipes, coating pipes, acoustic tubes, penetrators, piping tubes, and grinding pipes, compensatory devices, insulation headers, insulated flanges, hoods, caps, caps, caps, seals, fittings for chemical plants, pipe connections