主仆调教SM束缚绳索捆绑,成全电影大全第二季免费观看,色视频免费国产观看,成全影视大全在线观看

橡膠柔性伸縮接頭設計用于管道系統，以吸收管道運動，減輕應力，降低系統噪音/振動，并補償不對中/偏移，并保護旋轉機械設備免受啟動沖擊力。

Rubber flexible expansion joints are designed for use in piping systems to absorb piping movement, reduce stress, reduce system noise/vibration, compensate misalignment/offset, and protect rotating machinery from start-up shock.

制作松夏單球橡膠接頭材料

Make single ball rubber joint material of songxia
1、（外層和內層）：EPDM NBR和氯丁橡膠

1. (outer and inner layer) : EPDM, NBR and neoprene
2、增強層：尼龍織物與橡膠

2. Reinforcement layer: nylon fabric and rubber
3、線材：不銹鋼絲

3. Wire: stainless steel wire
4、法蘭材料：碳鋼，不銹鋼和球墨鑄鐵鐵

4.Flange material: carbon steel, stainless steel and ductile iron