NSEN anno 1983 condita est, specialiter in agro valvulae papilionis eccentrici.Post annos explorationis et praxis, series producti exsistentis infra formata est;

• Triplex valvae eccentrici papilio
• Princeps perficientur papilio valvae
• Metallum ad metallum papilio valvae
• -196℃Cryogenic papilio valvae
• Princeps calor ignis praesidium papilio valvae
• Damper papilio valvae
• Agua resistentia papilio valvae

In agro professionales, focus in papilio valvulae.Nsen etiam constanter auget suam industriam et probans vires suas.

• Ratio Certification

CE (PED)

ISO 9001

ISO 14001

ISO 45001

• Ignis Probatur Certification

API 607

• Humilis emissio Certification

API 641

ISO 15848-1

TA-LUFT

• Russian Certification

TR CU 010 / 032

• TPI Test certificationem

Cryogenic -196 Gloria Valvae Test Report

Neutrale Sal Spray (NSS) Test Report

Corrosio intergranuaria (IGC) Test Report