Aia mākou ma ʻaneʻi e kōkua i kāu mau pono hoʻopaʻa flange a me ka paipu.
Hoʻokumu ʻia ma 2008, ʻo Kina dingsheng Flange kahi ʻoihana ʻenehana kiʻekiʻe ma Zhejiang.ʻO Dingsheng Flange ka mea kūikawā i ka hoʻolālā a me ka hana ʻana i nā flanges a me nā paipu paipu e like me ANSI, JIS, DIN, EN, GOST, a me nā kūlana kūloko a me ka honua a me nā mea hoʻohui no ka ʻaila a me ke kinoea, hana mana, a me nā mākeke ʻoihana.