Dizayn kɛnɛya：

Në kë de valve ye tɔ̈ɔ̈u pinynhom, ye tɔ̈ɔ̈u pinynhom (pinynhom) ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ɔ̈u pinynhom ye tɔ̈ Valve surface resistant to corrosion asphalt coating protection or epoxy resin protection, field pipeline crosslinking and cathode protection measures, adapt to buried use environment. Valve surface resistant to corrosion asphalt coating protection or epoxy resin protection, field pipeline crosslinking and cathode protection measures, adapt to buried use environment.

Formu welding ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye：

Kɔnɔŋ saba ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye

Valve ball valve ye cɔl direct buried full welded ball valve ye cɔl full welded production installation, a dhil ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ. Welding end distance can't be too short, ensuring that the heat generated by welding process won't destroy the sealing materials. Welding end distance can't be too short, ensuring that the heat generated by welding process won't destroy the sealing materials. Lɔ̈k valves bɛ̈ɛ̈i tɛ̈n yenë kek tääu thïn