Modifiers matching pipe:

• fixed,
• plastic,
• ferromagnetic,
• underground,
• temporary,
• resilient,
• cylindrical,
• metal,
• additional,
• old,
• metallic,
• exposed,
• flexible,
• thicker,
• larger,
• ceramic,
• rigid,
• sized,
• industrial,
• concrete,
• standard,
• unusual,
• conventional,
• vertical,
• hollow,
• smaller,
• hard,
• nonmetallic,
• main,
• decorative,
• inside,

Simple categories matching metallic:

• object,
• ion,
• container,
• plate,
• material,
• structure,
• barrier,
• fluid,
• filament,
• sound,
• item,
• liquid,
• surface,
• alloy,
• constituent,
• plating,
• mineral,
• component,
• article,
• line,
• crystal,
• substrate,
• fixture,
• paint,
• wafer,
• stent,
• filler,
• entity,
• part,
• weapon,
• artifact,
• quality,
• pipe,
• hardware,
• derivative,
• salt,
• ornament,
• hydrate,
• content,
• covering,
• compound,
• brush,
• member,
• form,
• accessory,
• medium,
• cable,
• rock,
• crusher,
• electrode,
• enclosure,
• hydroxide,
• fibre,
• wire,
• resource,
• plane,
• monument,
• connector,
• portion,
• state,
• palladium,
• magnet,
• borate,
• strip,
• deposit,
• decoration,
• artefact,
• silicide,
• product,
• dryer,
• transport,
• block,
• sulfonate,
• ribbon,
• facility,
• foil,
• equipment,
• implement,
• projectile,
• sulphate,
• electrolyte,
• coating,
• np,
• solute,
• disk,
• body,
• instrument,
• element,
• conduit,
• clothing,
• lead,
• thing,
• beading,
• soap,
• fluoride,
• ore,
• carbide,
• catalyst,
• stuff,
• device,
• layer,
• pigment,
• composition,
• waste,
• pellet,
• solid,
• substance,
• appliance,
• construction,
• yarn,
• pallet,
• beetle,
• shade,
• chloride,
• core,
• chlorate,
• coagulant,
• installation,
• feature,
• dust,
• property,
• fiber,
• fragment,
• shield,
• cord,
• residual,
• contamination,
• fastener,
• conductor,
• matter,
• assets,
• frame,
• connection,
• sulphide,
• byproduct,
• scrubber,
• oxide,
• tubing,
• system,
• support,
• roller,
• fixing,
• fabric,
• residue,
• jewelry,
• gasket,
• particle,
• color,
• instrumentation,
• vessel,
• acetate,
• semiconductor,
• sheet,
• contaminant,
• piece,
• ground,
• mirror,
• fitting,
• sphere,
• membrane,
• atom,
• tool,
• commodity,
• tube,
• sulfide,
• path,
• shaft,
• blade,
• devices,
• cover,
• powder,