What is the bottle （Perfume bottles, essential oil bottles, glass bottles, cosmetic cream jars）capacity range? 

(Commonly 5ml–200ml, which do you primarily promote?)

What are the bottle neck/neck dimensions? 

(crimp 13/415, 15/415, 18/415, 20/400, 22/415, etc.? Which spray heads/pump heads/ball bearings are supported?)

Is the bottle screw-on or crimp-capped? Which standard sprayers/pumps are compatible

 (e.g., common European/American brands: Aptar, Rexam, Silgan, Albea)?

What is the bottle weight/wall thickness? 

(Lightweight or substantial feel? High-end customers value the "feel").

What surface treatments are supported? 

(Spray painting, screen printing, hot stamping, electroplating, UV plating, matte finish, acid etching, heat transfer, etc.?)

Color options?

 (Transparent, frosted, gradient, internal coating? Does it support Pantone colors?) 

Is the bottle shape/design based on a pre-made mold or does it require a new mold? What is the mold fee? How long will the lead time be?