Ogo nke ASSI-Standard Velves

Oseihe nwokeLelee valvụEmebere, emepụtara, mepụtara ma nwale dị ka A na-akpọ Standard Standard StandardLelee valvụ, yabụ kedu nke ụkpụrụ America kwuruLelee valvụ? Kedu ihe dị iche n'etiti valvụ nke mba ahụ? Ugbu a, usoro ọkọlọtọ nke ọkọlọtọ AmericaLelee valfsNdi a kariri ka emeputa ya ma meputa dika iwu API na Asme si di, na otutu uzo valvoriacle American Standard n'ezie n'ụwa. Akụkụ ụkpụrụ nke ụwa nke American Standard dị ka ndị a: Usoro ihe: API 6D, API B16.34, GB / T 1223, GB / T 122.5, Asme B16.5, Asme B16.5, Asme B16.5, Asme B16.5, Asme B16.5, Asme B16.5, Asme B16.5 B16.47, Asme B16.25, GB / T 9113, JG / T 72.3)Lelee valfsna ọkọlọtọ NationalLelee valfsdị ka ndị a: 1. Ngalaba nha dị iche; 2. Ihe ngosi di iche di iche; 3. Ogologo ihe owuwu di iche; 4. Nnyocha ndị ahụ dị iche.