Guruchli balli vana standarti
Jan 12, 2022
1. Mis balli valfning standart soni: GB / T15185-1994
2. Sanoat guruch balli klapan standart raqami: NF / E29-354-2003
3. Ball valve mahsulot sifati tasnifi Standart raqami: JC / T783-2004
4. Shisha tola bilan mustahkamlangan o'zgartirilgan fenolik guruch balli klapan standart raqami: JB / T8861-2004
