Advantages of connecting pipe explosion around product features? Has fire, corrosion resistance, water resistance, aging around good, solid structure, reliable work? About sex tube length, thread size according to user needs special processing, such as the NPT, metric ? when ordering thread size and thread and other forms of nipple? (eg: an inner one outside, two inside, outside or both) Executive Standard: GB3836.1-2000 GB3836.2-2000 materials generally have proof pvc jacket flexible connection pipe [1] proof flexible rubber tube connecting pipe stainless steel explosion-proof flexible connecting pipe [1] proof flexible plastic tube connected to the use of the environment and use? applies to a Zone 2 hazardous area? applicable to Class IIA IIB IIC explosive atmosphere? applies to military, petroleum, chemical, port, mining and other dangerous places proof flexible hose pipe structure at both ends of metal thread union, the tubular body portion of a metal hose, the outer cloth and enhanced quality rubber Nepal cloth wire braided hose jacket and a sandwich composed of three types of network management, generally 500,700,1000 equal length, as the inlet and outlet connections explosion-proof electrical equipment or steel wire bent difficult places around the connection of the explosion of the tube model Specifications and N represents the meaning of the pipe explosion Gd said that I said that about the rubber sheath II expressed stainless steel model for reference only selection available non-standard custom NGDI-700 * G1 / 2 NGDI-1000 * G1 / 2 NGDI-700 * G3 / 4 NGDI-1000 * G3 / 4 NGDI-700 * G1 NGDI-1000 * G1 NGDI-700 * G11 / 4 NGDI-1000 * G11 / 4 NGDI-700 * G11 / 2 NGDI-1000 * G11 / 2 NGDI- 700 * G2 NGDI-1000 * G2 NGDI-700 * G21 / 2 NGDI-1000 * G21 / 2 NGDI-700 * G3 NGDI-1000 * G3 NGDI-700 * G4 NGDI-1000 * G4 NGDII-700 * G1 / 2 NGDII -1000 * G1 / 2 NGDII-700 * G3 / 4 NGDII-1000 * G3 / 4 NGDII-700 * G1 NGDII-1000 * G1 NGDII-700 * G11 / 4 NGDII-1000 * G11 / 4 NGDII-700 * G11 / 2 NGDII-1000 * G11 / 2 NGDII-700 * G2 NGDII-1000 * G2 NGDII-700 * G21 / 2 NGDII-1000 * G21 / 2 NGDII-700 * G3 NGDII-1000 * G3 NGDII-700 * G4 NGDII-1000 * G4 BNG-15 × 700 BNG-15 × 1000 BNG-20 × 700 BNG-20 × 1000 BNG-25 × 700 BNG-25 × 1000 BNG-32 × 700 BNG-32 × 1000 BNG-40 × 700 BNG-40 × 1000 BNG-50 × 1000 BNG-70 × 1000 BNG-80 × 1000 BNG-100 × 1000 explosion around the connection pipe other non-standard specifications can be customized proof hose