 Manufacture and maintenance
of special equipments
JB/T4730 《Pressure-bearing equipment non-destructive testing》
NB/T47016《Mechanics performance testing for welding specimen of pressure-bearing equipment》
GB/T13913《Standard and testing method for Autocatalytic nickel-phosphorus alloy coatings》
SH/T3540 《Construction and acceptance standard for control compositelayer of steel heat-exchanger》
GB/T232 《Bending test method for metallic materials》
GB/T229 《Charpy pendulum impact test method for metallic materials》
GB/T13239《Low temperature tensile testing method for metallic materials》
GB/T228 《Indoor temperature tensile testing method for metallic materials》
GB/T4338 《High temperature tensile testing method for metallic materials》
GB/T231 《Brinell hardness test for metallic materials》
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