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glass without declarable substances
glass not containing declared substance
ceramic without declarable substances
prohibited and declarable substances
glass that is not clear
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what glass is not recyclable
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glass without declarable substances, glass not containing declared substance, ceramic without declarable substances, prohibited and declarable substances, glass that is not clear, glass is a remarkable substance, what glass is not recyclable, is glass a pure substance, is glass non biodegradable, is glass a substance, glass with no distortion
