were there multipal facilities that manufactured the tubes for the Noma bubble lites? I have noticed that the slugs and tube diameter vaire from light to light, the crimping on tip varies, and that some have what looks like salt, while some have what looks to be sugar that has darkend with age. With all of the diffrences of the bubble tubes it seems thqat there must ave been many facilites that produced them, or possibly that the tubes were contracted to other companyies by Noma. Has any one else noticed any of the diffrences?
