MATERIAL MATTERS

Metal screens for sorting of materials; metal linings; insulated flexible hoses of metal; metal hoses for industrial purposes; pipe bends of metal; metal couplings for pipes; metal pipes and metal fittings therefor; metal valves not being parts of machines; manually operated metal valves; elbows of metal for pipes; metal seals for metal pipe connections; metal clamps; metal pipe connectors; metal plugs; metal frac heads, namely, metal fracturing heads designed for use in the gas an oil field industry; metal cement heads designed for use in the gas and oil field industry; metal valve seats not being parts of machines; metals and metal alloys

Screens being parts of machines for sorting of materials; non-metallic hoses being parts of machinery; screening machines for sorting of materials; vibrating screens being parts of machines; chutes being parts of machines; valves being machine parts; fluid isolation devices being machine parts; pressure regulation devices being machine parts; flow control devices being parts of machines; cyclones; hydrocyclones; belts for conveyors; classifiers for separating materials being parts of machines; classifiers for separating particles being parts of machines; attrition cells, namely, machines for fine grinding or milling of mineral particles; valves being parts of machines; hydraulic valve actuators; pneumatic valve actuators; machine parts, namely, ball injector for inserting balls into a well during fracturing treatment; pneumatic devices for installing metal pipe connections being machine tools; plunger pump parts, namely, plungers, plunger packing and seats; parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; machinery, namely, oil well drawworks; valve seats being machine parts; valve inserts being machine parts; valve seat puller heads being machine tools; pistons for pumps; pumps for machines; pump-turbines being machine parts; turbines other than for land vehicles; steam turbines; hydraulic turbines; pump impellers; expellers for pumps; rubber squeegee blades specifically adapted for floor cleaning machines

Raw rubber; semi-worked rubber; cured rubber; uncured rubber; natural rubber; synthetic rubber; latex; rubber linings for equipment; rubber linings for conveyor belts; rubber sheets; rubber hoses; flexible non-metallic pipes; non-metallic flexible hoses of rubber reinforced with wires; hose linings of rubber; rubber elbow bends for pipes; rubber sheets for stopping; rubber belts for conveyors; sleeves of rubber for protecting parts of machines; shock absorbing rubber buffers for industrial machinery and industrial installations; rubber jointing compounds; impact and abrasion resistant bars made of rubber; impact and abrasion resistant panels made of rubber; rubber panels and sheets for lining walls and floors