Wrench is one of the common hand tools, which can be seen in many industries. A wrench is a hand tool that uses the principle of leverage to turn bolts, screws, or nuts. Today, I will tell you how to buy hand tools. Nowadays, there are many brands of hand tools, and there are many large and small... read more
The ratchet mechanism of the ratchet wrench is a unidirectional intermittent motion mechanism composed of a ratchet wheel and a pawl. The ratchet mechanism is mainly composed of a rocker, a pawl and an outer ratchet. When the rocker swings clockwise, the pawl hinged on the rod will be inserted into ... read more
Cylinder head gasket If there are oil holes, they must be aligned with the corresponding oil passage holes on the body and cylinder head to avoid friction caused by the oil cut-off of the valve mechanism on the cylinder head. There is no oil passage hole and the front and back shapes are the same, w... read more
There are many types of flanges, which are mainly classified according to their nominal diameter (Type A and Type B, that is, metric and inch), nominal pressure, purpose structure, material, sealing surface form, and connection method (diameter and pressure rating are not included). The forms are di... read more
High pressure flange (sae flange JBZQ4187-97): also called flange or flange. The part that connects the pipe and the pipe to each other, and is connected to the end of the pipe. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. Fla... read more
