| 1. | All materials shall be structurally sound and appropriate for safe use . product durability shall be ensured by the use of corrosion - resistant metals such as stainless steel , and coatings such as zinc - plating , galvanizing , and powder - coating on steel parts , subject to the project - specific requirements below
具抗霉菌性，绝不会因霉菌而腐烂-网布是多孔的，在阳光下热气透过网孔而散发，达至散热功能-可抵受冰雹侵袭 |
