manufacture price Tiopronin: white crystalloid powder Standard:YBH03792007/CP2005/USP29 package:1KG/drum 5KG/drum10KG/drum 25KG/drum payment:T/T in advance shipping:fast shipping by air,sea,express features:1 raw material 2 best quality lowest price 3 manufactured by our own factory 4having COA 5 Having export right 6 will get GMP certificate