Changsha Friend Experimental Analysis Instrument Co., Ltd. is a leading brand of petroleum product analysis apparatus field at home. As professional manufacturer testing equipment, we are an active member in standards organizations and lead standard development to guarantee that the ...

Founded in 1992, Xi'an Tianhou Filter Technology Co., Ltd. was started by some of the professors, engineers and administrators from North Western Polytechnical University. For decades, company, relying firmly on advantages abundant technology talents, has forged ahead into a ...

We are one of the pioneering manufacturer specialized in new technical research lubricant tools and instant auto repair maintenance equipment.and work out mainly for middle high class market. With ten years development, had built up three series more than hundred models now,which widely ...