European, American ndi Japanese ma valve muyeso makampani
ISO	International Standard	NF	French National Standard
AISI	Miyezo ya American Iron and Steel Institute	ASI	American Standards Institute Standard
ANSI	American National Standard	JIS	Japan Industrial Standard
API	American Petroleum Institute Standard	MIL	American Military Standard
BS	British National Standard	ASME	American Society of Mechanical Engineers Standards
DIN	German National Standard	JPI	Japan Petroleum Institute Standard
AWS	American Welding Association Standard	Chithunzi cha ASTM	American Society for Testing and Equipment
MSS	American Standardization Association for Valves ndi Pipe Fittings

Hangzhou Fuyang Bonly Casting Co., Ltd. pambuyo pake monga Bonly Casting, yomwe idakhazikitsidwa mchaka cha 2007, ndi wopanga okhazikika pakuponya molunjika komanso kuponya zipolopolo.Bonly Casting chimakwirira kudera la masikweya mita oposa 10,000, okhazikika kupanga kuponya zipolopolo, mu zinthu mndandanda wa carbon zitsulo, zitsulo zosapanga dzimbiri, low aloyi chitsulo, mkulu chromium kuponyedwa chitsulo, ductile chitsulo ndi zina zotero.
Zogulitsa za Bonly Casting zimagwiritsidwa ntchito kwambiri m'malo osiyanasiyana am'madzi, petrochemical, mphamvu za nyukiliya, mankhwala, chakudya ndi minda ina yamakina, zimatumizidwa ku United States, Japan, Canada, mayiko aku Europe ndi America ndi zigawo, kampaniyo ili ndi mphamvu yopanga pachaka 6,000 matani a zinthu zoponya.