雙螺線成人抖音在线软件C2W是使用C2型的螺線做雙重的編入，用浪心力骨連接的型式。
A2W是使用A2型的螺線做雙重的編入，用直心力骨連接的型式。
C2W uses the C2 type spiral(double)whereas
A2W uses A2 type spiral(double).C2W uses the Pre-crimped rods to joint whereas A2W uses the Straight rods.

Advantages
1.  允許張力大，可搬送重負載物
Allowable tension is high and heavy load can be 
Carried.
2. 可有於高溫情況
Belt can be used at high tiemperature.
3. 網目細小，所以可搬送小物品
Having fine mesh,the belt can be used for transprotation of small items.

ypical specification of C2W(nominal size)
      規格Specification                         重量Weight(kg/ m2) 
C2W-12.5-35-5.0-4.0                                  26.8 
C2W-10-22-4.0-3.4                                     26.5
C2W-9-15-3.0-2.6                                       18.9 
C2W-9-13-2.6-2.0                                       12.3 
C2W-8-17-3.4-2.6                                       20.6 
C2W-8-15-3.4-2.6                                       21.2 
C2W-7.5-26-3.4-2.6                                   18.2

      規格Specification              重量Weight(kg/m2)A2W-9.5-16-3.2-3.2                          27.0
A2W-8.0-14-3.2-2.6                          22.7
A2W-7.0-15-3.0-2.6                          23.3
A2W-6.5-12-2.6-2.3                          20.8
A2W-5.5-6.5-1.6-1.6                          13.6
A2W-4.0-7.0-1.8-1.2                          10.7
A2W-3.5-4.0-1.2-0.8                         6.7