< 保定Rotule special for Three toughed glass sheets with two air gaps : TF19 >

< 保定Uniform Stress Rotules: TF20 >

< 保定Countersunk head impervious barge joint >

< 保定Floating head impervious barge joint >

< 保定No-hole Fixed Rotule: TW1 >

< 保定No-hole Fixed Rotule: TW2 >

< 保定No-hole Fixed Rotule: TW3 >

< 保定No-hole Fixed Rotule: TW4 >

< 保定No-hole Articulated Rotule: TWJ1 >