Solid control system is a whole set of equipment used in oil and gas drilling. The function is to separate the solids from drilling fluid that are crushed by drill bits and carried out of well to the surface. Normally, the solid control system has five stages. 

Environmental protection equipment are widely used in Domestic Waste Water treatment, Industry waste water treatment, Chemical plant waste water treatment, Power plant etc. 
The equipment contain solids and liquid separation, chemical adding function.

Spare parts for tunneling machine, HDD etc. Include tunneling exit / entrance rubber seal, Waterstop rubber seal, double disc cutter, shaker screens etc.

Hardware and tools include spanner tools, screwdriver tools, Pliers, Sleeve tools, Allen spanner tools and measuring tools etc.