Natural Rubber Material Of Inflatable Rubber Balloon / Culvert Formwork The performance characteristics of Florescence inflatable rubber balloon 1. Design scientific and reasonable used inflatable rubber ... Đọc thêm
Structure: 1.Outer Rubber Cover outside on the ball of rubber layer, which is used to protect skeleton material and inner rubber ball from damage of external force. 2.Cord layers Reinforced cord rubber layer is ... Đọc thêm