ʻO ka mea i hala koke aku nei, ua hana ʻia nā kīwaha ʻo Jinbin no nā mea kūʻai aku o nā haole me nā kīwī pōpō welded a me nā kīwaha butterfly.Uaʻaeʻia kēia mau valves maʻamau no nā mea kūʻai Lūkini e nā mea kūʻai Lūkini a hoʻokō i nā koi loea koʻikoʻi.I kēia manawa, ua hoʻouna ʻia kēia mau valves a hāʻawi maikaʻi ʻia i nā mea kūʻai aku Lūkini ma waho.

ʻO ka valve butterfly welded he mea kino WCB me PN25.ʻOkoʻa ka nui mai DN800-DN1200.ʻO ke ʻano o ka valve butterfly he eccentric structure.

ʻO ka pahu pōpō welded me ka mea WCB, PN25, nā hopena welded.