GND Technology is a Hi-Tech company specialized in designing, researching & developing, manufacturing, marketing and servicing of security alarm instrument alarm for the flammability,combustible,explosive and toxic gases equipment We can detect (C7H8、C8H10、O2、C2H2、H2S、CO、CO2、NH3、CL2、 HCN、H2、NO、NO2、SO2、CLO2、HCL、COCL2、HF、PH3、HCOOH、 I2、CH3OH、C2H5OH、CH2O、CH3CHO、C2H4O、HBr、O3、SIH4、AsH3、 B2H6、LNG(CH4)、C2H6、LPG(C3H8)、C4H10、C5H12、C3H6、C4H8、C4H6、 C3H6O、C4H8O、C4H10O….) Currency: Unit Price: Quantity: Delivery: