Yuhuan Hvac Valve Factory

Valves, Hardware, Rubies sapphires & emeralds worked othw. than simply sawn/roughly shaped but not strung/mounted/set, Precious stones (other than diamonds) and semi-precious stones whether or not worked or graded but not strung mounted or set ungraded precious stones (other than diamonds) and semi-precious stones temporarily strung for convenience of transport, Natural or cultured pearls precious or semi-precious stones precious metals metals cladwith precious metal and articles thereof imitation jewellery coin, METALS