Dandong Top Electronics Instrument (Group) Co.,LTD
DDTOP was founded in 1992 and is a manufacturer of level and flow measurement & control process instruments. DDTOP is specialized in oil&gas, petroleum&chemical, power generation sector and is a qualified supplier of SINOPEC, PetroChina, CNOOC, ADNOC, NIGC etc. Our products have explosion proof certs (ATEX, IECEx,NEPSI, PCEC) , SIL2 &PED.