gte

vintage *new* 1970's gte dark brown flip-phone telephone

boric acid 1 lb 99% pure powder flux gold silver e-waste metal refining melting

99% boric acid powder - 2lb - industrial grade - fine powder boric acid

5 lb tetrasodium (edta) technical grade chelating agent textile water paper 99%

gold precipitant 16 oz refining test acid aqua regia metals smb pyrosulfite

2500 gram ceramic alumina crucible dish cup melting casting refining gold silver

gold refining test kit stannous chloride gold precipitant smb scrap metals

gold melting kit small ceramic crucible + 3/8" graphite stirring rod refining

gold melting kit borax flux + small ceramic crucible + 1/2" graphite rod tool

gold precipitation kit 2lb sodium metabisulfite smb gold refining recovery

gte complete gold, silver, & platinum jewelry testing & appraisal kit – professional grade

2000ml borosilicate glass beaker – high-quality griffin low form beaker

nitric acid 70% – 10 pack (32 oz bottles) 10 liters acs reagent grade for gold refining & precious metal recovery

boric acid 8 oz 99% pure powder flux gold silver e-waste metal refining melting

gold recovery & melting kit smb gold precipitant 1lb + ceramic crucible refining

jewelry pickle compound 1 lb gold silver copper fire scale oxidation remover

10 lb tetrasodium (edta) technical grade chelating agent textile water paper 99%

ceramic crucible melting dish gold silver copper casting refining alloying

jeweler’s grade borax flux 16oz + ceramic crucible gold silver glaze casting kit

gold precipitation kit 5lb sodium metabisulfite smb gold refining recovery