1.[Fine steel gear] The gear of the hand crank winch adopts thickened design and wear-resistant treatment, which is more reasonable and more accurate.
2.[Cast aluminum shell] The shell of the roll up lifting device is made of cast aluminum and sprayed with plastic, which is more antirust and durable, and the surface is fine, smooth and beautiful.
3.[Pulley & Roller design] The pulley of the machine is made delicately and designed delicately, which is more labor-saving; Also, it adopts the new roller, which is smooth and has longer service life.
4.[Anti skid handle] The handle of the machine is made of high-density ethylene anti-skid design, which makes it feel better and durable.
5.[Fastening screw] This mamual greenhouse sidewall manual film roll up adopts a new washer screw, which has better fixing effect, and not easy to take off the wire, also, it is more durable.