6
Metal drain pipes; couplings [joints] made of metal for pipes; metal pipe fittings; metal hose fittings; metal junctions for pipes; connectors of metal for pipes; metal hoses for plumbing use; metal valves not being parts of machines; metal drain traps; drain traps [valves] of metal; metal hardware
7
Ball valves being parts of machines; Perforated screens being parts of machines for sorting of materials; Filters being parts of machines; Filters [parts of machines or engines]; Filters for machines; Reversible flow filters [parts of machines]; check valves of metal [parts of machines]; check valves (non-metallic -) [parts of machines]; pressure reducing valves [parts of machines]; relief valves; valves; automatic inlet control valves for reciprocating air compressors; valves operated automatically by hydraulic control; valves operated automatically by pneumatic control valves; steam traps; steam traps for air and gas; couplings for machines; Strainers for machines; pneumatic valve actuators; hydraulic valve actuators; Block brakes [machine elements not for land vehicles]; Band brakes [machine elements not for land vehicles]; Valve units consisting of ball valves, strainers, and check valves; kneading machines for chemical processing; calcining machines for chemical processing; emulsifying machines for chemical processing; sintering machines for chemical processing; extracting machines for chemical processing; dissolving machines for chemical processing; granulating machines for chemical processing; absorbing machines for chemical processing; sorting machines for chemical processing; separating machines for chemical processing; blending machines for chemical processing; filtering machines for chemical processing; Food and beverage processing and preparation machines and apparatus; Pneumatic tools [machines]; Pneumatic controls for machines, motors and engines; Hydraulic controls for machines; Driving devices for machines; agricultural machines; Agricultural implements other than hand-operated; painting machines; plastic processing machines; semiconductor manufacturing machines; Rubber manufacturing machines; Metalworking machine tools