cementing head with swivel的意思|示意
美 / /
英 / /
旋转固井头
cementing head with swivel的网络常见释义
旋转水泥头 水泥头 cementing head 旋转水泥头 cementing head with swivel; top-drive cementing manifold 水泥伞 cementing basket0 ^# Z/ L* v4 p1 t* d: T ..