Valvula na ball na PVC double union an taimaka suka yi da karamin gaba mai yawa don samun standadai na sarrafa na zamani. An yi valvulomin da Baishunxing Pipeline Industry Co., Ltd., wanda suka yi daga PVC mai kyau, don tabbatawa cewa suka yi amfani da rashin kusurci da kimiyar. Tsarin double union ya ba mu imkanin yin fassara da sauyi a matsayin mafi kyau, kuma yana zama abin da aka so a cikin ƙwararri na farko, al'adu, da hanyoyin halartar da jihar. A cikin tsarin yin abu na zaman lafiya, wanda yana cikin ƙwararri na 13,320 square meters, an sanya teknoliji na zaman lafiya da mataimakin da suka yi amfani da ilimi da karamin gaba don gudanen da rarraba. Wannan shugaban karamin gaba ya tabbatawa cewa abubuwan da suka yi ba suka tabbatawa standadai na sarrafa ba, amma suka ci gaba da su. Ta hanyar amfani a cikin labeda 50 kasa, Baishunxing ta gudanen da zuciya ta yin sarrafa, ta ba abubuwan da suka tabbatawa karamin gaba da tsayayyen.