少妇愉情理伦片丰满丰满午夜-美女极品粉嫩美鮑20p图-亚洲av永久无码精品国产精品-火车上荫蒂添的好舒服视频-性少妇mdms丰满hdfilm

Technical description:
Material storage, realize the material from low to high conveyor posture is not identified
Mainly suitable for small size block and granular material lifting silo configuration protective cover
to ensure the safety of personnel while reducing noise

Technical description:
Before the transformation:
only one kind of engine conduit seat pressing
After the transformation:
1, compatible with two kinds of diesel engine conduit seat pressing
2, design a new model of seat indenter, the conduit remains unchanged, manually switch the seat indenter   3, redesign the liquid nitrogen tank to adapt to the new seat size  
4, manual switching of two models of feed track
5, manual switching of cylinder head tooling

Technical note:
Before transformation: manual pre-screwing + tightening of bolts.
After transformation: the upper station is manually pre-screwed, and the station is automatically tightened, saving one labor.