勝利油田勝利動力機械集團有限公司（以下簡稱“勝動集團”）現為山東省屬國有一級企業水發集團公司權屬公司，始建于1974年，是國內第一批從事分布式燃氣內燃機設計、制造的企業之一，迄今已有50年歷史。勝動集團是國內領先的分布式燃氣發電機組制造企業，國家火炬計劃重點高新技術企業，國家級分布式能源燃氣內燃機裝備自主化研發制造基地。

Aleader Machinery is a modern manufacturing company specializing in investment casting, heat treatment, precision machining and surface treatment. We are committed to providing our customers with high-quality castings and manufacturing solutions.

SLAA Tape is a adhesive tapes manufacturer in China, professional supply and convert high quality adhesive tapes. We have over 10 years experience converting the Masking tape, Gaffers tape, Painters tape, Splicing tape, Aluminum foil tapes.

Dongying Highco Metal Manufacturing Co.,Ltd. is a professional manufacturer and supplier in Steel Handrail Railing Fittings and glass railing system fittings in stainless steel materials, satin and mirror surface finish.

DeYou Tape Co., Ltd. as one of the largest aluminum foil tape manufacturer, main products include Aluminum foil tape, FSK tape, Aluminum foil glass cloth tape, Foil scrim tape, PET laminated foil tape.

Shengya Chemical is the professional manufacturer of sodium chlorite and its related chemicals in China. The main products are: Sodium Chlorite Solid, Liquid Sodium Chlorite, Chlorine Dioxide, Sodium Bisulfate.