GB/T 5310 imhando yechubhu yebhoyira.

Chinhu chayo chinomiririra i20g, 20mng, 25mng. Isimbi ine kabhoni iri pakati nepakati ine manganese shoma.

Hurefu hwekutumira kwechubhu yebhoyira hwakakamurwa kuita mhando mbiri: saizi yakatarwa uye saizi mbiri. Mutengo weyuniti yechubhu yega yega yemumba unoverengerwa zvichienderana nehurefu hwakatarwa, uye mutengo wechubhu yega yega unoverengerwa zvichienderana nehuremu chaihwo.

Zviyero zviviri zvinogona kukamurwa kuita mhando nhatu:

Rura pfupi: inoshandiswa kugadzirisa pombi yesimbi isina musono pakutsigira;

Pombi yesimbi isina musono ine upamhi hwakaenzana (dhayamita yekunze iri pasi pe32mm): inoshandiswa pakugadzira michina, michina yehydraulic ine mativi akarurama uye kupedzisa kwakanaka kwepombi yesimbi isina musono;

Pombi yesimbi isina musono yakajairika (dhayamita yekunze inodarika 32mm kana dhayamita yemukati iri pasi pe40mm): Inoshandiswa pazvikamu zvakasiyana-siyana zvechivakwa, maturusi uye zvikamu zvemakanika.