Acid

Advertencia

Air

Air Return

Air Supply

Aire Comprimido

Ammonia

Apron Symbol

Argon

Arrow

Aviso

Aviso—Todas las máquinas y los equipos deben ser bloqueados antes de realizarles cualquier servicio o mantenimiento

Blank

Boots Symbol

Carbon Dioxide

Caustic

Caution

Caution—Acid Be Careful/Precaucion—Acido Tenga Cuidado

1/4" to 3/4"

1/2" to 1"

5/8" to 1"

3/4" to 2"

3/4" to 2 1/4"

1 1/8" to 2 1/4"

1 1/8" to 2 1/2"

2" to 10"

2 1/4" to 7 7/8"

2 3/8" to 3 1/4"

2 1/2" to 4 3/4"

2 1/2" to 7 7/8"

3 3/8" to 4 1/2"

4 5/8" to 5 7/8"

5" to 7 7/8"

6" to 7 7/8"

8" to 10"

10 1/8" to 15"