Kungiyar Chengyu mai kerawa ce ta kayan aiki na gwaji. Kwarewa a cikin samar da hanyoyin gwajin lantarki na gama gari na duniya, sanye take da tsarin gwajin servo na ci gaba da aiwatar da aikin injin da aka sarrafa daidai kuma sami cikakken bayanai. Bayar da nau'ikan kayan gwaji daban-daban, na iya zama daukaka, matsawa, zubar da kuma sauran gwajin kayan masarufi. Ya danganta da sel na yankan yankakken, sel daidai zai iya kai 0.5. Tsabtace muhalli, hayaniya-kyauta lokacin da kayan aikin ke gudana.

Kungiyar Chengyu tana da cikakkiyar sarkar masana'antu kuma ta sami takardar shaidar Iso9001. Sanye take da mafi girman-karshen gama CNC na CNC, zai iya samar da firam na gwaji da kayan haɗi daban-daban. Daga zaɓin kayan abinci zuwa kowane mahaɗin samarwa, Chengyu mai sarrafawa don tabbatar da cewa muna samar da abokan ciniki tare da mafi kyawun samfuran. Kayan aikin sun karɓi yabo baki daya, kuma an fitar da su zuwa Amurka, Turai, kudu maso gabas ASIA da Afirka, da sauransu. Chengyu amintaccen alama don abokin ciniki mai daraja.