HG standards: HG 20226-2015 to HG 30016-2013

3 standards in English, in code order.

1. HG 20226-2015Code for construction and acceptance of tubular furnace installation works$540.00
2. HG 20706-2013Code for design of waste incineration facilities in chemical construction projects$800.00
3. HG 30016-2013Safety code for excavation work in production areas$154.00